{"id":83620,"date":"2026-01-18T21:38:00","date_gmt":"2026-01-18T21:38:00","guid":{"rendered":"https:\/\/discover.restek.com\/non-categorise\/comprehensive-trace-level-gc-ms-ms-semivolatiles-method\/"},"modified":"2026-03-31T09:36:30","modified_gmt":"2026-03-31T09:36:30","slug":"methode-gc-ms-ms-complete-pour-l-analyse-des-composes-semi-volatils-a-l-etat-de-traces","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/fr\/notes-dapplication\/evan4920-fr\/methode-gc-ms-ms-complete-pour-l-analyse-des-composes-semi-volatils-a-l-etat-de-traces","title":{"rendered":"M\u00e9thode GC-MS\/MS compl\u00e8te pour l\u2019analyse des compos\u00e9s semi-volatils \u00e0 l\u2019\u00e9tat de traces"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u00c9l\u00e9ments cl\u00e9s<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La d\u00e9sactivation de nouvelle g\u00e9n\u00e9ration TriMax offre un circuit d&#8217;\u00e9chantillon robuste et hautement inerte.<\/li>\n\n\n\n<li>Son inertie optimale offre une meilleure forme de pics pour une large gamme de compos\u00e9s semi-volatils, des plages d&#8217;\u00e9talonnage plus basses et une sensibilit\u00e9 jusqu\u2019au picogramme.<\/li>\n\n\n\n<li>Ses performances maximales permettent d\u2019analyser un plus grand nombre d\u2019analytes et des volumes d&#8217;\u00e9chantillons plus r\u00e9duits.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/explore.restek.com\/RMX-contact-technical-service-fr\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"127\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-Contact-us-HTML-Block-TECHNICAL-SERVICE_FR-768x127-2.png\" alt=\"\" class=\"wp-image-83951\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-Contact-us-HTML-Block-TECHNICAL-SERVICE_FR-768x127-2.png 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-Contact-us-HTML-Block-TECHNICAL-SERVICE_FR-768x127-2-300x50.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/explore.restek.com\/RMX-contact-sales-fr\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"127\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-Contact-us-HTML-Block-SALES-FR-768x127-1.png\" alt=\"\" class=\"wp-image-83957\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-Contact-us-HTML-Block-SALES-FR-768x127-1.png 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-Contact-us-HTML-Block-SALES-FR-768x127-1-300x50.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9sum\u00e9<\/h2>\n\n\n\n<p>La pr\u00e9sente \u00e9tude examine l\u2019impact de la d\u00e9sactivation r\u00e9volutionnaire TriMax sur l\u2019analyse des compos\u00e9s semi-volatils par GC-MS\/MS. Les performances des quatre colonnes couramment utilis\u00e9es ont \u00e9t\u00e9 compar\u00e9es en termes d\u2019asym\u00e9trie des pics, de lin\u00e9arit\u00e9 de l\u2019\u00e9talonnage, du taux de r\u00e9cup\u00e9ration et de r\u00e9p\u00e9tabilit\u00e9 pour une grande vari\u00e9t\u00e9 de compositions chimiques. Les r\u00e9sultats montrent que les colonnes RMX-5Sil MS dot\u00e9es de la nouvelle d\u00e9sactivation TriMax, poss\u00e8dent une surface consid\u00e9rablement plus inerte. Ces colonnes r\u00e9pondent aux crit\u00e8res de performances pour les compos\u00e9s semi-volatils acides, basiques et neutres, alors que les autres colonnes ne remplissent ces crit\u00e8res que pour certaines classes de compos\u00e9s. Les performances comp\u00e9titives pour une large gamme de compos\u00e9s semi-volatils \u00e0 faibles concentrations permettent aux laboratoires de simplifier leurs op\u00e9rations au moyen de protocoles d\u2019extraction simplifi\u00e9s ou d\u2019une consolidation des m\u00e9thodes. La d\u00e9sactivation TriMax des colonnes RMX-5Sil MS permettent de surmonter les probl\u00e8mes d\u2019activit\u00e9 qui affectent les performances quantitatives des colonnes concurrentes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p>La pr\u00e9sence des compos\u00e9s organiques semi-volatils (COSV) dans l\u2019environnement est surveill\u00e9e dans le monde entier en raison de leur pr\u00e9valence et les risques qu&#8217;ils pr\u00e9sentent pour la sant\u00e9 humaine. Les m\u00e9thodes GC-MS et GC-MS\/MS sont largement utilis\u00e9es pour l\u2019analyse des compos\u00e9s semi-volatils dans les \u00e9chantillons environnementaux. Gr\u00e2ce \u00e0 la sensibilit\u00e9 \u00e9lev\u00e9e de la d\u00e9tection en MS\/MS, les laboratoires peuvent atteindre des limites de d\u00e9tection plus basses et \u00e9conomiser ainsi du solvant et du temps en r\u00e9duisant les volumes d\u2019extraction des \u00e9chantillons. Les m\u00e9thodes d\u2019extraction \u00e0 faible volume sont g\u00e9n\u00e9ralement plus simples et utilisent moins de solvant (par exemple, le dichlorom\u00e9thane) que les m\u00e9thodes d\u2019extraction classiques. Toutefois, les extraits sont moins concentr\u00e9s, ce qui favorise l\u2019utilisation de la GC-MS\/MS dans les laboratoires cherchant \u00e0 r\u00e9duire leur consommation de solvant tout en maintenant les performances de leurs m\u00e9thodes.<\/p>\n\n\n\n<p>Les compos\u00e9s semi-volatils couvrent une large gamme de compositions chimiques, dont certaines sont connues pour interagir avec les sites actifs (par exemple, les silanols) du circuit de l&#8217;\u00e9chantillon. Il est donc difficile d\u2019obtenir une d\u00e9tection fiable en cas de faibles concentrations. Pour surmonter les difficult\u00e9s li\u00e9es \u00e0 ces interactions, les laboratoires peuvent utiliser diff\u00e9rents types de colonnes GC en fonction des analytes cibles. Les colonnes de polarit\u00e9 interm\u00e9diaire &#8220;5&#8221; ou &#8220;5sil&#8221; sont couramment utilis\u00e9es, mais lorsque les laboratoires cherchent \u00e0 abaisser les limites de d\u00e9tection et \u00e0 maximiser la sensibilit\u00e9 de leurs colonnes, les inconv\u00e9nients des diff\u00e9rents proc\u00e9d\u00e9s de fabrication de ces colonnes de type 5 deviennent plus \u00e9vidents. Les sites actifs r\u00e9siduels \u00e0 la surface des colonnes GC n\u2019ont habituellement pas d\u2019impact sur les compos\u00e9s neutres, mais les compos\u00e9s acides et basiques peuvent \u00eatre sensibles m\u00eame \u00e0 une tr\u00e8s faible pr\u00e9sence de site actif en surface . Avec l\u2019introduction des compos\u00e9s basiques (benzidine) et acides (pentachloroph\u00e9nol) dans les essais de conformit\u00e9 des colonnes, ainsi que la n\u00e9cessit\u00e9 d\u2019\u00e9talonnages de plus en plus sensibles, les sites actifs \u00e0 la surface des colonnes GC font l\u2019objet d\u2019un contr\u00f4le approfondi. Les colonnes GC qui pr\u00e9sentent une d\u00e9sactivation efficace pour une large gamme de compos\u00e9s sont tr\u00e8s demand\u00e9es car elles produisent de meilleurs r\u00e9sultats pour les compos\u00e9s semi-volatils acides, basiques et neutres. Elles permettent donc aux laboratoires d\u2019am\u00e9liorer leur productivit\u00e9 et leur rentabilit\u00e9 gr\u00e2ce \u00e0 une consommation r\u00e9duite des solvants, des meilleures performances des instruments et davantage d\u2019opportunit\u00e9s de consolidation des m\u00e9thodes.<\/p>\n\n\n\n<p>Dans cette \u00e9tude, nous avons compar\u00e9 les performances de plusieurs colonnes GC couramment utilis\u00e9es pour l\u2019analyse des compos\u00e9s semi-volatils avec les performances des colonnes RMX-5Sil MS. La surface des colonnes RMX-5Sil MS est soumise \u00e0 une d\u00e9sactivation unique TriMax consistant \u00e0 d\u00e9poser un polym\u00e8re r\u00e9sistant qui \u00e9limine les sites actifs et offre une inertie exceptionnelle dans le circuit de l&#8217;\u00e9chantillon. La colonne RMX-5Sil MS s\u2019appuie sur un polym\u00e8re 5sil traditionnel (elle remplace donc directement les colonnes 5Sil). Sa surface hautement inerte am\u00e9liore la forme des pics et les performances pour une grande vari\u00e9t\u00e9 de compos\u00e9s, ce qui permet d\u2019abaisser les courbes d&#8217;\u00e9talonnage, tout en respectant les exigences de qualit\u00e9 des donn\u00e9es.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a>M\u00e9thode exp\u00e9rimental<\/a>e<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Pr\u00e9paration des solutions-\u00e9talons et des \u00e9chantillons<\/em><\/h3>\n\n\n\n<p>Des solutions-\u00e9talons de calibration contenant des compos\u00e9s semi-volatils acides, basiques et neutres ont \u00e9t\u00e9 pr\u00e9par\u00e9es dans le dichlorom\u00e9thane, sur une gamme de 0,5 \u00e0 5000 ppb, afin de d\u00e9terminer la plage d&#8217;\u00e9talonnage la plus basse pour chaque analyte. Des nouveaux \u00e9talons de calibration ont \u00e9t\u00e9 pr\u00e9par\u00e9s pour chaque colonne. Des \u00e9talons pour les tests de taux de r\u00e9cup\u00e9ration \u00e0 concentration interm\u00e9diaire ont \u00e9t\u00e9 \u00e9galement pr\u00e9par\u00e9s \u00e0 50 ppb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a><em>Conditions analytique<\/em><\/a>s<\/h3>\n\n\n\n<p>Les \u00e9chantillons ont \u00e9t\u00e9 analys\u00e9s sur quatre types de colonnes (RMX-5Sil MS, deux colonnes concurrentes \u00ab premium \u00bb et une colonne concurrente classique) de 30 m, DI 0.25 mm, 0.25 \u03bcm. L\u2019analyse des compos\u00e9s semi-volatils est effectu\u00e9 \u00e0 l\u2019aide d\u2019un GC Thermo TRACE 1310 coupl\u00e9 \u00e0 un spectrom\u00e8tre de masse TSQ 8000. Les conditions utilis\u00e9es ci-dessous sont simplifi\u00e9es \u00e0 des fins de normalisation et de comparaison directe des colonnes test\u00e9es. Dans les travaux de routine, il est possible d\u2019utiliser des param\u00e8tres diff\u00e9rents pour l\u2019injecteur, le four ou le d\u00e9tecteur, dans le but d\u2019optimiser les r\u00e9sultats d\u2019analyses. Les conditions optimis\u00e9es sont pr\u00e9sent\u00e9es dans une autre \u00e9tude men\u00e9e \u00e0 de faibles concentrations et portant sur une liste \u00e9tendue de 150 compos\u00e9s semi-volatils couramment analys\u00e9s [1].<\/p>\n\n\n\n<p>Volume d&#8217;injection : 1 \u00b5L<br>Insert d&#8217;injection : Topaz Precision 4 mm avec laine (r\u00e9f. 23267)&nbsp;<br>Injecteur : 250 \u00b0C; 5:1 split; 1.2 mL\/min&nbsp;<br>Gaz vecteur : helium<br>Four : 40 \u00b0C (maintien 1 min) \u00e0 280 \u00b0C \u00e0 12,4 \u00b0C\/min, puis 315 \u00b0C \u00e0 3,3 \u00b0C\/min (maintien 1 min)<br>D\u00e9tecteur : MS\/MS&nbsp;; mode SRM&nbsp;; temp\u00e9rature de la ligne de transfert&nbsp;: 280 \u00b0C&nbsp;; temp\u00e9rature de la source&nbsp;: 330 \u00b0C (voir les transitions SRM en Figure 1)<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><em>\u00c9valuation de la qualit\u00e9 des donn\u00e9es<\/em><\/h3>\n\n\n\n<p>La qualit\u00e9 des donn\u00e9es a \u00e9t\u00e9 \u00e9valu\u00e9e selon l\u2019asym\u00e9trie des pics, la lin\u00e9arit\u00e9, le taux de r\u00e9cup\u00e9ration et la r\u00e9p\u00e9tabilit\u00e9. Les performances g\u00e9n\u00e9rales pour chaque crit\u00e8re ont \u00e9t\u00e9 class\u00e9es selon le Tableau I. L\u2019asym\u00e9trie a \u00e9t\u00e9 \u00e9valu\u00e9e pour chaque compos\u00e9 afin de mesurer l\u2019inertie. La lin\u00e9arit\u00e9 a \u00e9t\u00e9 \u00e9valu\u00e9e au moyen des valeurs R2 et %RSD (\u00e9cart-type relatif). Le taux de r\u00e9cup\u00e9ration a \u00e9t\u00e9 d\u00e9termin\u00e9 pour chaque analyte au point d&#8217;\u00e9talonnage le plus bas (LCP, &#8220;lowest calibration point&#8221;), ainsi qu\u2019\u00e0 50 ppb, utilis\u00e9 comme point interm\u00e9diaire. La r\u00e9p\u00e9tabilit\u00e9 du taux de r\u00e9cup\u00e9ration a \u00e9galement \u00e9t\u00e9 d\u00e9termin\u00e9e \u00e0 50 ppb.<\/p>\n\n\n\n<p><strong>Tableau I :<\/strong> Classification de la qualit\u00e9 des donn\u00e9es<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th><\/th><th class=\"has-text-align-center\" data-align=\"center\">Ideal<\/th><th class=\"has-text-align-center\" data-align=\"center\">Acceptable<\/th><th class=\"has-text-align-center\" data-align=\"center\">Poor<\/th><\/tr><\/thead><tbody><tr><td><strong>Asymmetry<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">0.9-1.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5-0.9 or 1.2-2<\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;0.5, &gt;2<\/td><\/tr><tr><td><strong>Linearity (R<sup>2<\/sup>)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">&gt;0.995<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.990-0.995<\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;0.990<\/td><\/tr><tr><td><strong>Linearity (%RSD)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;10%<\/td><td class=\"has-text-align-center\" data-align=\"center\">11-20%<\/td><td class=\"has-text-align-center\" data-align=\"center\">&gt;20%<\/td><\/tr><tr><td><strong>Recovery (LCP)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">70-130%<\/td><td class=\"has-text-align-center\" data-align=\"center\">50-69% or 131-200%<\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;50%, &gt;200%<\/td><\/tr><tr><td><strong>Recovery&nbsp;(50 ppb)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">70-130%<\/td><td class=\"has-text-align-center\" data-align=\"center\">50-69% or 131-200%<\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;50%, &gt;200%<\/td><\/tr><tr><td><strong>Repeatability (%RSD at 50 ppb)<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">&lt;10%<\/td><td class=\"has-text-align-center\" data-align=\"center\">11-20%<\/td><td class=\"has-text-align-center\" data-align=\"center\">&gt;20%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9sultats et Discussion<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Performances chromatographiques<\/em><\/h3>\n\n\n\n<p>Les silanols sont une source courante de sites actifs \u00e0 la surface de la silice fondue des colonnes GC. Les fabricants de colonnes utilisent divers traitements de d\u00e9sactivation pour r\u00e9duire leur impact. Toutefois, si la d\u00e9sactivation n\u2019est pas enti\u00e8rement efficace, l\u2019interaction des analytes avec les silanols peut entra\u00eener une s\u00e9paration irr\u00e9guli\u00e8re ou retard\u00e9e depuis la phase stationnaire, provoquant des tra\u00een\u00e9es de pics et d\u2019autres probl\u00e8mes comme un d\u00e9calage des temps de r\u00e9tention et une perte de sensibilit\u00e9. Les compos\u00e9s acides, en particulier les ph\u00e9nols, peuvent \u00eatre retenus par les silanols par une liaison hydrog\u00e8ne, tandis que les compos\u00e9s basiques comme les benzidines peuvent se fixer \u00e0 la surface par une interaction acide-base. L\u2019une des difficult\u00e9s de l\u2019analyse des compos\u00e9s semi-volatils provient de la grande vari\u00e9t\u00e9 des classes de compos\u00e9s qui interagissent selon des m\u00e9canismes et des intensit\u00e9s diff\u00e9rents . La d\u00e9sactivation des colonnes doit donc \u00eatre efficace pour une large gamme de compos\u00e9s. &nbsp;<\/p>\n\n\n\n<p>Afin de mieux ma\u00eetriser l\u2019activit\u00e9 des silanols, Restek a d\u00e9velopp\u00e9 la d\u00e9sactivation TriMax de nouvelle g\u00e9n\u00e9ration pour l\u2019ensemble des colonnes RMX. Cette d\u00e9sactivation r\u00e9duit le plus possible l\u2019activit\u00e9 des silanols en surface gr\u00e2ce \u00e0 une interface polym\u00e8re\/silice fondue robuste, emp\u00eachant ainsi les interactions entre les analytes et les silanols. La Figure 1 montre que la colonne RMX-5Sil MS offre d\u2019excellentes performances chromatographiques et des pics fins et sym\u00e9triques pour une grande vari\u00e9t\u00e9 de compos\u00e9s semi-volatils, notamment des compos\u00e9s complexes comme le 2,4-dinitroph\u00e9nol (2,4-DNP)&nbsp;; le pentachloroph\u00e9nol et la benzidine.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<style>.kb-image83620_0731a0-84 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image83620_0731a0-84\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.restek.com\/c\/1484\" class=\"kb-advanced-image-link\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"177\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/\/RMX-Graphic-Ad-HTML-Block-with-Topaz-Liners_FR-1024x177.png\" alt=\"\" class=\"kb-img wp-image-91728\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-HTML-Block-with-Topaz-Liners_FR-1024x177.png 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-HTML-Block-with-Topaz-Liners_FR-300x52.png 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-HTML-Block-with-Topaz-Liners_FR-768x133.png 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-HTML-Block-with-Topaz-Liners_FR.png 1340w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/div>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 1 : <\/strong>Une excellente forme des pics a \u00e9t\u00e9 obtenu avec la colonne RMX-5Sil MS pour une large gamme de compos\u00e9s semi-volatils dans les conditions normalis\u00e9es de l\u2019analyse comparative. (Pour des conditions optimales, voir notre m\u00e9thode d\u2019analyse de 150 compos\u00e9s semi-volatils \u00e0 faible concentration [1].)<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n<div class=\"wp-block-custom-chromatogram-article\"><div class=\"wp-block-custom-chromatogram-article\"><div class=\"chromatogram-image wide-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ev1528.png\" alt=\"Low-Level Acidic, Basic, and Neutral Semivolatiles on RMX-5Sil MS by GC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_EV1528<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-12\">\n<thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><th style=\"text-align: center;width: 75px\">t<sub>R<\/sub> (min)<\/th><th style=\"text-align: center;width: 75px\">Conc.<br \/>(ng\/mL)<\/th><th style=\"text-align: center;width: 75px\">Mass 1<\/th><th style=\"text-align: center;width: 75px\">Product 1<\/th><th style=\"text-align: center;width: 75px\">Collision energy 1<\/th><th style=\"text-align: center;width: 75px\">Mass 2<\/th><th style=\"text-align: center;width: 75px\">Product 2<\/th><th style=\"text-align: center;width: 75px\">Collision energy 2<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for N-Nitrosodimethylamine\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/62-75-9\/N-Nitrosodimethylamine\" target=\"_blank\" rel=\"noopener\">N-Nitrosodimethylamine<\/a><\/td><td class=\"oth\">3.55<\/td><td class=\"oth\">50<\/td><td class=\"oth\">74<\/td><td class=\"oth\">44<\/td><td class=\"oth\">6<\/td><td class=\"oth\">74<\/td><td class=\"oth\">42<\/td><td class=\"oth\">16<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Pyridine\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/110-86-1\/Pyridine\" target=\"_blank\" rel=\"noopener\">Pyridine<\/a><\/td><td class=\"oth\">3.59<\/td><td class=\"oth\">50<\/td><td class=\"oth\">79<\/td><td class=\"oth\">51<\/td><td class=\"oth\">26<\/td><td class=\"oth\">52<\/td><td class=\"oth\">26<\/td><td class=\"oth\">18<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Fluorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/367-12-4\/2-Fluorophenol\" target=\"_blank\" rel=\"noopener\">2-Fluorophenol<\/a><\/td><td class=\"oth\">5.03<\/td><td class=\"oth\">50<\/td><td class=\"oth\">112<\/td><td class=\"oth\">92<\/td><td class=\"oth\">6<\/td><td class=\"oth\">92<\/td><td class=\"oth\">63<\/td><td class=\"oth\">14<\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Phenol-d6\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/13127-88-3\/Phenol-d6\" target=\"_blank\" rel=\"noopener\">Phenol-d6<\/a><\/td><td class=\"oth\">6.37<\/td><td class=\"oth\">50<\/td><td class=\"oth\">99<\/td><td class=\"oth\">71<\/td><td class=\"oth\">8<\/td><td class=\"oth\">99<\/td><td class=\"oth\">69<\/td><td class=\"oth\">18<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Phenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/108-95-2\/Phenol\" target=\"_blank\" rel=\"noopener\">Phenol<\/a><\/td><td class=\"oth\">6.40<\/td><td class=\"oth\">50<\/td><td class=\"oth\">94<\/td><td class=\"oth\">66<\/td><td class=\"oth\">10<\/td><td class=\"oth\">94<\/td><td class=\"oth\">65<\/td><td class=\"oth\">16<\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Aniline\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/62-53-3\/Aniline\" target=\"_blank\" rel=\"noopener\">Aniline<\/a><\/td><td class=\"oth\">6.45<\/td><td class=\"oth\">50<\/td><td class=\"oth\">93<\/td><td class=\"oth\">66<\/td><td class=\"oth\">10<\/td><td class=\"oth\">93<\/td><td class=\"oth\">65<\/td><td class=\"oth\">20<\/td><\/tr>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Chlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/95-57-8\/2-Chlorophenol\" target=\"_blank\" rel=\"noopener\">2-Chlorophenol<\/a><\/td><td class=\"oth\">6.62<\/td><td class=\"oth\">50<\/td><td class=\"oth\">128<\/td><td class=\"oth\">64<\/td><td class=\"oth\">14<\/td><td class=\"oth\">128<\/td><td class=\"oth\">63<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 1,4-Dichlorobenzene-d4\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/3855-82-1\/1,4-Dichlorobenzene-d4\" target=\"_blank\" rel=\"noopener\">1,4-Dichlorobenzene-d4<\/a><\/td><td class=\"oth\">6.96<\/td><td class=\"oth\">100<\/td><td class=\"oth\">150<\/td><td class=\"oth\">115<\/td><td class=\"oth\">14<\/td><td class=\"oth\">150<\/td><td class=\"oth\">78<\/td><td class=\"oth\">26<\/td><\/tr>\n<tr><td class=\"num\">9.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Methylphenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/95-48-7\/2-Methylphenol\" target=\"_blank\" rel=\"noopener\">2-Methylphenol<\/a><\/td><td class=\"oth\">7.38<\/td><td class=\"oth\">50<\/td><td class=\"oth\">108<\/td><td class=\"oth\">80<\/td><td class=\"oth\">8<\/td><td class=\"oth\">108<\/td><td class=\"oth\">77<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">10.<\/td><td class=\"cmpd\">3- and 4-Methylphenol<\/td><td class=\"oth\">7.66<\/td><td class=\"oth\">50<\/td><td class=\"oth\">70<\/td><td class=\"oth\">43<\/td><td class=\"oth\">6<\/td><td class=\"oth\">107<\/td><td class=\"oth\">77<\/td><td class=\"oth\">14<\/td><\/tr>\n<tr><td class=\"num\">11.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Nitrobenzene-d5\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/4165-60-0\/Nitrobenzene-d5\" target=\"_blank\" rel=\"noopener\">Nitrobenzene-d5<\/a><\/td><td class=\"oth\">7.89<\/td><td class=\"oth\">50<\/td><td class=\"oth\">128<\/td><td class=\"oth\">82<\/td><td class=\"oth\">12<\/td><td class=\"oth\">128<\/td><td class=\"oth\">54<\/td><td class=\"oth\">28<\/td><\/tr>\n<tr><td class=\"num\">12.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Nitrophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/88-75-5\/2-Nitrophenol\" target=\"_blank\" rel=\"noopener\">2-Nitrophenol<\/a><\/td><td class=\"oth\">8.54<\/td><td class=\"oth\">50<\/td><td class=\"oth\">139<\/td><td class=\"oth\">81<\/td><td class=\"oth\">12<\/td><td class=\"oth\">139<\/td><td class=\"oth\">109<\/td><td class=\"oth\">8<\/td><\/tr>\n<tr><td class=\"num\">13.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,4-Dimethylphenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/105-67-9\/2,4-Dimethylphenol\" target=\"_blank\" rel=\"noopener\">2,4-Dimethylphenol<\/a><\/td><td class=\"oth\">8.61<\/td><td class=\"oth\">50<\/td><td class=\"oth\">122<\/td><td class=\"oth\">107<\/td><td class=\"oth\">12<\/td><td class=\"oth\">122<\/td><td class=\"oth\">77<\/td><td class=\"oth\">20<\/td><\/tr>\n<tr><td class=\"num\">14.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzoic acid\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/65-85-0\/Benzoic acid\" target=\"_blank\" rel=\"noopener\">Benzoic acid<\/a><\/td><td class=\"oth\">8.72<\/td><td class=\"oth\">50<\/td><td class=\"oth\">122<\/td><td class=\"oth\">105<\/td><td class=\"oth\">8<\/td><td class=\"oth\">122<\/td><td class=\"oth\">77<\/td><td class=\"oth\">20<\/td><\/tr>\n<tr><td class=\"num\">15.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,4-Dichlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/120-83-2\/2,4-Dichlorophenol\" target=\"_blank\" rel=\"noopener\">2,4-Dichlorophenol<\/a><\/td><td class=\"oth\">8.95<\/td><td class=\"oth\">50<\/td><td class=\"oth\">162<\/td><td class=\"oth\">63<\/td><td class=\"oth\">24<\/td><td class=\"oth\">162<\/td><td class=\"oth\">98<\/td><td class=\"oth\">12<\/td><\/tr>\n<tr><td class=\"num\">16.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Naphthalene-d8\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1146-65-2\/Naphthalene-d8\" target=\"_blank\" rel=\"noopener\">Naphthalene-d8<\/a><\/td><td class=\"oth\">9.18<\/td><td class=\"oth\">100<\/td><td class=\"oth\">136<\/td><td class=\"oth\">134<\/td><td class=\"oth\">14<\/td><td class=\"oth\">136<\/td><td class=\"oth\">108<\/td><td class=\"oth\">18<\/td><\/tr>\n<tr><td class=\"num\">17.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Naphthalene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/91-20-3\/Naphthalene\" target=\"_blank\" rel=\"noopener\">Naphthalene<\/a><\/td><td class=\"oth\">9.23<\/td><td class=\"oth\">50<\/td><td class=\"oth\">128<\/td><td class=\"oth\">102<\/td><td class=\"oth\">16<\/td><td class=\"oth\">129<\/td><td class=\"oth\">103<\/td><td class=\"oth\">14<\/td><\/tr>\n<tr><td class=\"num\">18.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4-Chloroaniline\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/106-47-8\/4-Chloroaniline\" target=\"_blank\" rel=\"noopener\">4-Chloroaniline<\/a><\/td><td class=\"oth\">9.35<\/td><td class=\"oth\">50<\/td><td class=\"oth\">127<\/td><td class=\"oth\">100<\/td><td class=\"oth\">10<\/td><td class=\"oth\">127<\/td><td class=\"oth\">65<\/td><td class=\"oth\">20<\/td><\/tr>\n<tr><td class=\"num\">19.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,6-Dichlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/87-65-0\/2,6-Dichlorophenol\" target=\"_blank\" rel=\"noopener\">2,6-Dichlorophenol<\/a><\/td><td class=\"oth\">9.37<\/td><td class=\"oth\">50<\/td><td class=\"oth\">162<\/td><td class=\"oth\">63<\/td><td class=\"oth\">24<\/td><td class=\"oth\">164<\/td><td class=\"oth\">63<\/td><td class=\"oth\">26<\/td><\/tr>\n<tr><td class=\"num\">20.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4-Chloro-3-methylphenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/59-50-7\/4-Chloro-3-methylphenol\" target=\"_blank\" rel=\"noopener\">4-Chloro-3-methylphenol<\/a><\/td><td class=\"oth\">10.28<\/td><td class=\"oth\">50<\/td><td class=\"oth\">142<\/td><td class=\"oth\">107<\/td><td class=\"oth\">12<\/td><td class=\"oth\">107<\/td><td class=\"oth\">77<\/td><td class=\"oth\">12<\/td><\/tr>\n<tr><td class=\"num\">21.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Methylnaphthalene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/91-57-6\/2-Methylnaphthalene\" target=\"_blank\" rel=\"noopener\">2-Methylnaphthalene<\/a><\/td><td class=\"oth\">10.53<\/td><td class=\"oth\">50<\/td><td class=\"oth\">141<\/td><td class=\"oth\">115<\/td><td class=\"oth\">16<\/td><td class=\"oth\">141<\/td><td class=\"oth\">89<\/td><td class=\"oth\">30<\/td><\/tr>\n<tr><td class=\"num\">22.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 1-Methylnaphthalene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/90-12-0\/1-Methylnaphthalene\" target=\"_blank\" rel=\"noopener\">1-Methylnaphthalene<\/a><\/td><td class=\"oth\">10.71<\/td><td class=\"oth\">50<\/td><td class=\"oth\">141<\/td><td class=\"oth\">115<\/td><td class=\"oth\">16<\/td><td class=\"oth\">141<\/td><td class=\"oth\">89<\/td><td class=\"oth\">30<\/td><\/tr>\n<tr><td class=\"num\">23.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,4,6-Trichlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/88-06-2\/2,4,6-Trichlorophenol\" target=\"_blank\" rel=\"noopener\">2,4,6-Trichlorophenol<\/a><\/td><td class=\"oth\">11.09<\/td><td class=\"oth\">50<\/td><td class=\"oth\">132<\/td><td class=\"oth\">97<\/td><td class=\"oth\">10<\/td><td class=\"oth\">196<\/td><td class=\"oth\">97<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">24.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,4,5-Trichlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/95-95-4\/2,4,5-Trichlorophenol\" target=\"_blank\" rel=\"noopener\">2,4,5-Trichlorophenol<\/a><\/td><td class=\"oth\">11.09<\/td><td class=\"oth\">50<\/td><td class=\"oth\">132<\/td><td class=\"oth\">97<\/td><td class=\"oth\">10<\/td><td class=\"oth\">196<\/td><td class=\"oth\">97<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">25.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Fluorobiphenyl\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/321-60-8\/2-Fluorobiphenyl\" target=\"_blank\" rel=\"noopener\">2-Fluorobiphenyl<\/a><\/td><td class=\"oth\">11.26<\/td><td class=\"oth\">50<\/td><td class=\"oth\">172<\/td><td class=\"oth\">171<\/td><td class=\"oth\">12<\/td><td class=\"oth\">172<\/td><td class=\"oth\">170<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">26.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for o-Nitroaniline\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/88-74-4\/o-Nitroaniline\" target=\"_blank\" rel=\"noopener\">o-Nitroaniline<\/a><\/td><td class=\"oth\">11.66<\/td><td class=\"oth\">50<\/td><td class=\"oth\">138<\/td><td class=\"oth\">92<\/td><td class=\"oth\">12<\/td><td class=\"oth\">138<\/td><td class=\"oth\">65<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">27.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acenaphthylene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/208-96-8\/Acenaphthylene\" target=\"_blank\" rel=\"noopener\">Acenaphthylene<\/a><\/td><td class=\"oth\">12.24<\/td><td class=\"oth\">50<\/td><td class=\"oth\">152<\/td><td class=\"oth\">102<\/td><td class=\"oth\">26<\/td><td class=\"oth\">152<\/td><td class=\"oth\">76<\/td><td class=\"oth\">36<\/td><\/tr>\n<tr><td class=\"num\">28.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 3-Nitroaniline\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/99-09-2\/3-Nitroaniline\" target=\"_blank\" rel=\"noopener\">3-Nitroaniline<\/a><\/td><td class=\"oth\">12.49<\/td><td class=\"oth\">50<\/td><td class=\"oth\">138<\/td><td class=\"oth\">92<\/td><td class=\"oth\">12<\/td><td class=\"oth\">138<\/td><td class=\"oth\">65<\/td><td class=\"oth\">20<\/td><\/tr>\n<tr><td class=\"num\">29.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acenaphthene-d10\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/15067-26-2\/Acenaphthene-d10\" target=\"_blank\" rel=\"noopener\">Acenaphthene-d10<\/a><\/td><td class=\"oth\">12.53<\/td><td class=\"oth\">100<\/td><td class=\"oth\">162<\/td><td class=\"oth\">160<\/td><td class=\"oth\">18<\/td><td class=\"oth\">164<\/td><td class=\"oth\">162<\/td><td class=\"oth\">14<\/td><\/tr>\n<tr><td class=\"num\">30.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acenaphthene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/83-32-9\/Acenaphthene\" target=\"_blank\" rel=\"noopener\">Acenaphthene<\/a><\/td><td class=\"oth\">12.60<\/td><td class=\"oth\">50<\/td><td class=\"oth\">153<\/td><td class=\"oth\">126<\/td><td class=\"oth\">36<\/td><td class=\"oth\">153<\/td><td class=\"oth\">77<\/td><td class=\"oth\">38<\/td><\/tr>\n<tr><td class=\"num\">31.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,4-Dinitrophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/51-28-5\/2,4-Dinitrophenol\" target=\"_blank\" rel=\"noopener\">2,4-Dinitrophenol<\/a><\/td><td class=\"oth\">12.70<\/td><td class=\"oth\">50<\/td><td class=\"oth\">184<\/td><td class=\"oth\">154<\/td><td class=\"oth\">6<\/td><td class=\"oth\">154<\/td><td class=\"oth\">79<\/td><td class=\"oth\">12<\/td><\/tr>\n<tr><td class=\"num\">32.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4-Nitrophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/100-02-7\/4-Nitrophenol\" target=\"_blank\" rel=\"noopener\">4-Nitrophenol<\/a><\/td><td class=\"oth\">12.90<\/td><td class=\"oth\">50<\/td><td class=\"oth\">139<\/td><td class=\"oth\">109<\/td><td class=\"oth\">6<\/td><td class=\"oth\">139<\/td><td class=\"oth\">81<\/td><td class=\"oth\">14<\/td><\/tr>\n<tr><td class=\"num\">33.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,3,4,6-Tetrachlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/58-90-2\/2,3,4,6-Tetrachlorophenol\" target=\"_blank\" rel=\"noopener\">2,3,4,6-Tetrachlorophenol<\/a><\/td><td class=\"oth\">13.21<\/td><td class=\"oth\">50<\/td><td class=\"oth\">232<\/td><td class=\"oth\">168<\/td><td class=\"oth\">12<\/td><td class=\"oth\">234<\/td><td class=\"oth\">131<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">34.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4-Nitroaniline\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/100-01-6\/4-Nitroaniline\" target=\"_blank\" rel=\"noopener\">4-Nitroaniline<\/a><\/td><td class=\"oth\">13.60<\/td><td class=\"oth\">50<\/td><td class=\"oth\">138<\/td><td class=\"oth\">108<\/td><td class=\"oth\">8<\/td><td class=\"oth\">138<\/td><td class=\"oth\">80<\/td><td class=\"oth\">18<\/td><\/tr>\n<tr><td class=\"num\">35.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Fluorene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/86-73-7\/Fluorene\" target=\"_blank\" rel=\"noopener\">Fluorene<\/a><\/td><td class=\"oth\">13.61<\/td><td class=\"oth\">50<\/td><td class=\"oth\">165<\/td><td class=\"oth\">115<\/td><td class=\"oth\">24<\/td><td class=\"oth\">165<\/td><td class=\"oth\">139<\/td><td class=\"oth\">26<\/td><\/tr>\n<tr><td class=\"num\">36.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4,6-Dinitro-2-methylphenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/534-52-1\/4,6-Dinitro-2-methylphenol\" target=\"_blank\" rel=\"noopener\">4,6-Dinitro-2-methylphenol<\/a><\/td><td class=\"oth\">13.71<\/td><td class=\"oth\">50<\/td><td class=\"oth\">198<\/td><td class=\"oth\">168<\/td><td class=\"oth\">6<\/td><td class=\"oth\">198<\/td><td class=\"oth\">121<\/td><td class=\"oth\">10<\/td><\/tr>\n<tr><td class=\"num\">37.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Diphenylamine\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/122-39-4\/Diphenylamine\" target=\"_blank\" rel=\"noopener\">Diphenylamine<\/a><\/td><td class=\"oth\">13.88<\/td><td class=\"oth\">50<\/td><td class=\"oth\">169<\/td><td class=\"oth\">66<\/td><td class=\"oth\">22<\/td><td class=\"oth\">170<\/td><td class=\"oth\">66<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">38.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2,4,6-Tribromophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/118-79-6\/2,4,6-Tribromophenol\" target=\"_blank\" rel=\"noopener\">2,4,6-Tribromophenol<\/a><\/td><td class=\"oth\">14.10<\/td><td class=\"oth\">50<\/td><td class=\"oth\">330<\/td><td class=\"oth\">141<\/td><td class=\"oth\">36<\/td><td class=\"oth\">332<\/td><td class=\"oth\">143<\/td><td class=\"oth\">34<\/td><\/tr>\n<tr><td class=\"num\">39.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Pentachlorophenol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/87-86-5\/Pentachlorophenol\" target=\"_blank\" rel=\"noopener\">Pentachlorophenol<\/a><\/td><td class=\"oth\">15.04<\/td><td class=\"oth\">50<\/td><td class=\"oth\">228<\/td><td class=\"oth\">165<\/td><td class=\"oth\">14<\/td><td class=\"oth\">270<\/td><td class=\"oth\">169<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">40.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Phenanthrene-d10\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1517-22-2\/Phenanthrene-d10\" target=\"_blank\" rel=\"noopener\">Phenanthrene-d10<\/a><\/td><td class=\"oth\">15.40<\/td><td class=\"oth\">100<\/td><td class=\"oth\">188<\/td><td class=\"oth\">160<\/td><td class=\"oth\">20<\/td><td class=\"oth\">184<\/td><td class=\"oth\">156<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">41.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Phenanthrene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/85-01-8\/Phenanthrene\" target=\"_blank\" rel=\"noopener\">Phenanthrene<\/a><\/td><td class=\"oth\">15.46<\/td><td class=\"oth\">50<\/td><td class=\"oth\">178<\/td><td class=\"oth\">152<\/td><td class=\"oth\">18<\/td><td class=\"oth\">178<\/td><td class=\"oth\">151<\/td><td class=\"oth\">32<\/td><\/tr>\n<tr><td class=\"num\">42.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Dinoseb\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/88-85-7\/Dinoseb\" target=\"_blank\" rel=\"noopener\">Dinoseb<\/a><\/td><td class=\"oth\">15.49<\/td><td class=\"oth\">50<\/td><td class=\"oth\">163<\/td><td class=\"oth\">116<\/td><td class=\"oth\">14<\/td><td class=\"oth\">240<\/td><td class=\"oth\">211<\/td><td class=\"oth\">8<\/td><\/tr>\n<tr><td class=\"num\">43.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Anthracene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/120-12-7\/Anthracene\" target=\"_blank\" rel=\"noopener\">Anthracene<\/a><\/td><td class=\"oth\">15.54<\/td><td class=\"oth\">50<\/td><td class=\"oth\">178<\/td><td class=\"oth\">152<\/td><td class=\"oth\">18<\/td><td class=\"oth\">177<\/td><td class=\"oth\">151<\/td><td class=\"oth\">18<\/td><\/tr>\n<tr><td class=\"num\">44.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Fluoranthene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/206-44-0\/Fluoranthene\" target=\"_blank\" rel=\"noopener\">Fluoranthene<\/a><\/td><td class=\"oth\">17.78<\/td><td class=\"oth\">50<\/td><td class=\"oth\">202<\/td><td class=\"oth\">176<\/td><td class=\"oth\">26<\/td><td class=\"oth\">202<\/td><td class=\"oth\">152<\/td><td class=\"oth\">30<\/td><\/tr>\n<tr><td class=\"num\">45.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzidine\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/92-87-5\/Benzidine\" target=\"_blank\" rel=\"noopener\">Benzidine<\/a><\/td><td class=\"oth\">18.05<\/td><td class=\"oth\">50<\/td><td class=\"oth\">184<\/td><td class=\"oth\">156<\/td><td class=\"oth\">18<\/td><td class=\"oth\">184<\/td><td class=\"oth\">166<\/td><td class=\"oth\">16<\/td><\/tr>\n<tr><td class=\"num\">46.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Pyrene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/129-00-0\/Pyrene\" target=\"_blank\" rel=\"noopener\">Pyrene<\/a><\/td><td class=\"oth\">18.20<\/td><td class=\"oth\">50<\/td><td class=\"oth\">200<\/td><td class=\"oth\">174<\/td><td class=\"oth\">22<\/td><td class=\"oth\">200<\/td><td class=\"oth\">149<\/td><td class=\"oth\">34<\/td><\/tr>\n<tr><td class=\"num\">47.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for p-Terphenyl-d14\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1718-51-0\/p-Terphenyl-d14\" target=\"_blank\" rel=\"noopener\">p-Terphenyl-d14<\/a><\/td><td class=\"oth\">18.57<\/td><td class=\"oth\">50<\/td><td class=\"oth\">244<\/td><td class=\"oth\">242<\/td><td class=\"oth\">14<\/td><td class=\"oth\">244<\/td><td class=\"oth\">240<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">48.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 3,3&#039;-Dichlorobenzidine\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/91-94-1\/3,3&#039;-Dichlorobenzidine\" target=\"_blank\" rel=\"noopener\">3,3&#8242;-Dichlorobenzidine<\/a><\/td><td class=\"oth\">20.53<\/td><td class=\"oth\">50<\/td><td class=\"oth\">252<\/td><td class=\"oth\">154<\/td><td class=\"oth\">26<\/td><td class=\"oth\">252<\/td><td class=\"oth\">181<\/td><td class=\"oth\">22<\/td><\/tr>\n<tr><td class=\"num\">49.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Chrysene-d12\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1719-03-5\/Chrysene-d12\" target=\"_blank\" rel=\"noopener\">Chrysene-d12<\/a><\/td><td class=\"oth\">20.55<\/td><td class=\"oth\">100<\/td><td class=\"oth\">240<\/td><td class=\"oth\">238<\/td><td class=\"oth\">14<\/td><td class=\"oth\">240<\/td><td class=\"oth\">236<\/td><td class=\"oth\">30<\/td><\/tr>\n<tr><td class=\"num\">50.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benz[a]anthracene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/56-55-3\/Benz[a]anthracene\" target=\"_blank\" rel=\"noopener\">Benz[a]anthracene<\/a><\/td><td class=\"oth\">20.63<\/td><td class=\"oth\">50<\/td><td class=\"oth\">228<\/td><td class=\"oth\">202<\/td><td class=\"oth\">22<\/td><td class=\"oth\">226<\/td><td class=\"oth\">200<\/td><td class=\"oth\">28<\/td><\/tr>\n<tr><td class=\"num\">51.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Chrysene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/218-01-9\/Chrysene\" target=\"_blank\" rel=\"noopener\">Chrysene<\/a><\/td><td class=\"oth\">20.63<\/td><td class=\"oth\">50<\/td><td class=\"oth\">228<\/td><td class=\"oth\">202<\/td><td class=\"oth\">22<\/td><td class=\"oth\">228<\/td><td class=\"oth\">201<\/td><td class=\"oth\">36<\/td><\/tr>\n<tr><td class=\"num\">52.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzo[b]fluoranthene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/205-99-2\/Benzo[b]fluoranthene\" target=\"_blank\" rel=\"noopener\">Benzo[b]fluoranthene<\/a><\/td><td class=\"oth\">22.90<\/td><td class=\"oth\">50<\/td><td class=\"oth\">252<\/td><td class=\"oth\">226<\/td><td class=\"oth\">22<\/td><td class=\"oth\">250<\/td><td class=\"oth\">224<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">53.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzo[k]fluoranthene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/207-08-9\/Benzo[k]fluoranthene\" target=\"_blank\" rel=\"noopener\">Benzo[k]fluoranthene<\/a><\/td><td class=\"oth\">22.91<\/td><td class=\"oth\">50<\/td><td class=\"oth\">252<\/td><td class=\"oth\">226<\/td><td class=\"oth\">22<\/td><td class=\"oth\">250<\/td><td class=\"oth\">224<\/td><td class=\"oth\">24<\/td><\/tr>\n<tr><td class=\"num\">54.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzo[a]pyrene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/50-32-8\/Benzo[a]pyrene\" target=\"_blank\" rel=\"noopener\">Benzo[a]pyrene<\/a><\/td><td class=\"oth\">23.66<\/td><td class=\"oth\">50<\/td><td class=\"oth\">252<\/td><td class=\"oth\">226<\/td><td class=\"oth\">22<\/td><td class=\"oth\">250<\/td><td class=\"oth\">224<\/td><td class=\"oth\">26<\/td><\/tr>\n<tr><td class=\"num\">55.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Perylene-d12\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1520-96-3\/Perylene-d12\" target=\"_blank\" rel=\"noopener\">Perylene-d12<\/a><\/td><td class=\"oth\">23.81<\/td><td class=\"oth\">100<\/td><td class=\"oth\">264<\/td><td class=\"oth\">262<\/td><td class=\"oth\">20<\/td><td class=\"oth\">264<\/td><td class=\"oth\">260<\/td><td class=\"oth\">34<\/td><\/tr>\n<tr><td class=\"num\">56.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Indeno[1,2,3-cd]pyrene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/193-39-5\/Indeno[1,2,3-cd]pyrene\" target=\"_blank\" rel=\"noopener\">Indeno[1,2,3-cd]pyrene<\/a><\/td><td class=\"oth\">26.74<\/td><td class=\"oth\">50<\/td><td class=\"oth\">276<\/td><td class=\"oth\">274<\/td><td class=\"oth\">38<\/td><td class=\"oth\">276<\/td><td class=\"oth\">250<\/td><td class=\"oth\">30<\/td><\/tr>\n<tr><td class=\"num\">57.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Dibenz[a,h]anthracene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/53-70-3\/Dibenz[a,h]anthracene\" target=\"_blank\" rel=\"noopener\">Dibenz[a,h]anthracene<\/a><\/td><td class=\"oth\">26.80<\/td><td class=\"oth\">50<\/td><td class=\"oth\">139<\/td><td class=\"oth\">126<\/td><td class=\"oth\">8<\/td><td class=\"oth\">139<\/td><td class=\"oth\">113<\/td><td class=\"oth\">14<\/td><\/tr>\n<tr><td class=\"num\">58.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzo[ghi]perylene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/191-24-2\/Benzo[ghi]perylene\" target=\"_blank\" rel=\"noopener\">Benzo[ghi]perylene<\/a><\/td><td class=\"oth\">27.47<\/td><td class=\"oth\">50<\/td><td class=\"oth\">276<\/td><td class=\"oth\">274<\/td><td class=\"oth\">38<\/td><td class=\"oth\">138<\/td><td class=\"oth\">125<\/td><td class=\"oth\">12<\/td><\/tr>\n<\/tbody><\/table><\/div><div class=\"chromatogram-conditions\"><h4>Conditions<\/h4><div class=\"conditions-container container-fluid\"><div class=\"row\"><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Column<\/th><td>RMX-5Sil MS, 30 m, 0.25 mm ID, 0.25 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/17323?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 17323<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td><\/td><\/tr><tr><td><\/td><td>8270 Calibration mix #1 (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/31618?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 31618<\/a>)<\/td><\/tr><tr><td><\/td><td>8270 Calibration mix #2 (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/31619?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 31619<\/a>)<\/td><\/tr><tr><td><\/td><td>8270 Calibration mix #5 (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/31995?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 31995<\/a>)<\/td><\/tr><tr><td><\/td><td>Base neutral surrogate mix (4\/89 SOW) (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/31024?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 31024<\/a>)<\/td><\/tr><tr><td><\/td><td>Acid surrogate mix (4\/89 SOW) (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/31025?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 31025<\/a>)<\/td><\/tr><tr><td><\/td><td>Revised SV internal standard mix (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/31886?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 31886<\/a>)<\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Dichloromethane<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>50 ppb  (100 ppb internal standards)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 5:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 4.0 mm ID Precision liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23267?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_EV1528\" rel=\"noopener\">cat.# 23267<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Split Vent Flow Rate:<\/th><td>6 mL\/min<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>40 &#176;C (hold 1 min) to 280 &#176;C at 12.4 &#176;C\/min to 315 &#176;C at 3.3 &#176;C\/min (hold 1 min)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Carrier Gas<\/th><td>He, constant flow<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Flow Rate:<\/th><td>1.2 mL\/min @ 40 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>SRM\/MRM<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Acquisition Type:<\/th><td>SRM\/MRM <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Source Temp.:<\/th><td>330 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Transfer Line Temp.:<\/th><td>280 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Analyzer Type:<\/th><td>Triple Quadrupole <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ionization Mode:<\/th><td>EI <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Collision Gas:<\/th><td>Ar <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Tune Type:<\/th><td>PFTBA <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Tune Emission Current:<\/th><td>70 \u03bcA<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Thermo Scientific TSQ 8000 Triple Quadrupole GC-MS<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>Standards were combined and diluted to a concentration of 50 ppb with internal standards added at 100 ppb.<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>31618<\/li><li>31619<\/li><li>31995<\/li><li>31024<\/li><li>31025<\/li><li>31886<\/li><li>17323<\/li><li>23267<\/li><\/ul><\/div><div class=\"chromatogram-related-searches\"><h4>Related Searches<\/h4><ul><li>8270<\/li><li>8270e<\/li><li>RMX-library<\/li><li>acid<\/li><li>base<\/li><li>neutral<\/li><li>semivolatile<\/li><li>semivolatiles-gc-library<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ev1528.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\"><g data-name=\"Group 2996\"><path data-name=\"Rectangle 1246\" d=\"M0 0h18v18H0z\" style=\"fill: none;\"><\/path><\/g><g data-name=\"Group 2997\"><path data-name=\"Path 729\" d=\"M13.412 11.4v2.017H5.345V11.4H4v2.017a1.349 1.349 0 0 0 1.345 1.345h8.068a1.349 1.349 0 0 0 1.345-1.345V11.4zm-.672-2.694-.948-.948-1.741 1.735V4H8.706v5.493L6.965 7.758l-.948.948 3.361 3.361z\" transform=\"translate(-.437 -.414)\" style=\"fill: rgb(13, 123, 196);\"><\/path><\/g><\/svg>Download PDF<\/a><\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Afin de comparer l\u2019inertie des colonnes RMX-5Sil MS \u00e0 celle des colonnes couramment utilis\u00e9es pour l\u2019analyse des compos\u00e9s semi-volatils, nous avons \u00e9valu\u00e9 l\u2019asym\u00e9trie des pics dans des conditions normalis\u00e9es \u00e0 50 ppb. Le niveau de 50 ppb a \u00e9t\u00e9 choisi pour \u00e9valuer l\u2019asym\u00e9trie au point interm\u00e9diaire de la courbe d\u2019\u00e9talonnage. L\u2019\u00e9valuation au point interm\u00e9diaire compense les tra\u00een\u00e9es de pics susceptibles de se confondre avec la ligne de base \u00e0 faibles concentrations. La Figure 2 montre que pour les compos\u00e9s semi-volatils acides, basiques et neutres, la colonne RMX-5Sil MS a permis d\u2019obtenir des r\u00e9sultats optimaux pour davantage de compos\u00e9s que les autres colonnes test\u00e9es. La diff\u00e9rence est particuli\u00e8rement remarquable pour les compos\u00e9s acides et basiques, permettant une identification et quantification plus pr\u00e9cises pour une large gamme de compos\u00e9s semi-volatils en une seule analyse. Cette sp\u00e9cificit\u00e9 offre aux laboratoires une opportunit\u00e9 de consolider leurs m\u00e9thodes.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\">Figure 2 : L&#8217;\u00e9valuation de l\u2019asym\u00e9trie montre que l\u2019inertie exceptionnelle des colonnes RMX-5Sil MS produit une forme de pics id\u00e9ale pour un plus grand nombre de compos\u00e9s semi-volatils acides, basiques et neutres que les autres colonnes analytiques.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"411\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/\/figure-EVAN4919-02-1024x411.jpg\" alt=\"\" class=\"wp-image-62835\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-02-1024x411.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-02-300x120.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-02-768x308.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-02.jpg 1340w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<\/div><\/div><\/div>\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>En plus d\u2019une am\u00e9lioration g\u00e9n\u00e9rale de l\u2019asym\u00e9trie des pics, des signaux de meilleure qualit\u00e9 ont \u00e9t\u00e9 observ\u00e9s \u00e0 des concentrations tr\u00e8s faibles pour une grande vari\u00e9t\u00e9 de compos\u00e9s semi-volatils r\u00e9put\u00e9s particuli\u00e8rement complexes (Figure 3). Des meilleures formes de pics, qui permettent l\u2019int\u00e9gration facile avec le logiciel, ont \u00e9t\u00e9 obtenus sur la colonne RMX-5Sil MS pour la pyridine, la benzidine, l\u2019acide benzo\u00efque, le 2,4-dinitroph\u00e9nol et le pentachloroph\u00e9nol. En revanche, les colonnes concurrentes ont montr\u00e9 des performances semblables pour certains compos\u00e9s, mais des performances nettement inf\u00e9rieures pour d\u2019autres. Les diff\u00e9rences visuelles entre les formes de pics montrent que l\u2019inertie de la d\u00e9sactivation TriMax des colonnes RMX a une efficacit\u00e9 plus \u00e9tendue que les d\u00e9sactivations classiques utilis\u00e9es dans les autres colonnes.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 3 : <\/strong>Gr\u00e2ce \u00e0 leur inertie tr\u00e8s \u00e9tendue, les colonnes RMX-5Sil MS ont produit des pics de bonne qualit\u00e9 au point d&#8217;\u00e9talonnage le plus bas (pg &#8220;on-column&#8221;) pour une grande vari\u00e9t\u00e9 de compos\u00e9s actifs complexes.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<p><strong>Compos\u00e9s basiques<\/strong><\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article\"><div class=\"wp-block-custom-chromatogram-article\"><div class=\"chromatogram-image wide-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ev1531.png\" alt=\"Select Low-Level Basic Semivolatiles on RMX-5Sil MS by GC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_EV1531<\/p><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>31618<\/li><li>31619<\/li><li>31995<\/li><li>31024<\/li><li>31025<\/li><li>31886<\/li><li>17323<\/li><li>23267<\/li><\/ul><\/div><div class=\"chromatogram-related-searches\"><h4>Related Searches<\/h4><ul><li>RMX-library<\/li><li>method 8270<\/li><li>semivolatiles<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ev1531.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\"><g data-name=\"Group 2996\"><path data-name=\"Rectangle 1246\" d=\"M0 0h18v18H0z\" style=\"fill: none;\"><\/path><\/g><g data-name=\"Group 2997\"><path data-name=\"Path 729\" d=\"M13.412 11.4v2.017H5.345V11.4H4v2.017a1.349 1.349 0 0 0 1.345 1.345h8.068a1.349 1.349 0 0 0 1.345-1.345V11.4zm-.672-2.694-.948-.948-1.741 1.735V4H8.706v5.493L6.965 7.758l-.948.948 3.361 3.361z\" transform=\"translate(-.437 -.414)\" style=\"fill: rgb(13, 123, 196);\"><\/path><\/g><\/svg>Download PDF<\/a><\/div><\/div><\/div>\n\n\n<p><strong>Compos\u00e9s acides<\/strong><\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article\"><div class=\"wp-block-custom-chromatogram-article\"><div class=\"chromatogram-image wide-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ev1530.png\" alt=\"Select Low-Level Acidic Semivolatiles on RMX-5Sil MS by GC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_EV1530<\/p><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>31618<\/li><li>31619<\/li><li>31995<\/li><li>31024<\/li><li>31025<\/li><li>31886<\/li><li>17323<\/li><li>23267<\/li><\/ul><\/div><div class=\"chromatogram-related-searches\"><h4>Related Searches<\/h4><ul><li>8270E<\/li><li>RMX-library<\/li><li>semivolatiles<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ev1530.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\"><g data-name=\"Group 2996\"><path data-name=\"Rectangle 1246\" d=\"M0 0h18v18H0z\" style=\"fill: none;\"><\/path><\/g><g data-name=\"Group 2997\"><path data-name=\"Path 729\" d=\"M13.412 11.4v2.017H5.345V11.4H4v2.017a1.349 1.349 0 0 0 1.345 1.345h8.068a1.349 1.349 0 0 0 1.345-1.345V11.4zm-.672-2.694-.948-.948-1.741 1.735V4H8.706v5.493L6.965 7.758l-.948.948 3.361 3.361z\" transform=\"translate(-.437 -.414)\" style=\"fill: rgb(13, 123, 196);\"><\/path><\/g><\/svg>Download PDF<\/a><\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full has-custom-border\"><a href=\"https:\/\/discover.restek.com\/fr\/articles-fr\/gnot3445-fr\/outils-en-ligne-ezgc\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1340\" height=\"312\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-EZGC-HTML-Block_FR.png\" alt=\"\" class=\"has-border-color has-theme-palette-9-border-color wp-image-83966\" style=\"border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-EZGC-HTML-Block_FR.png 1340w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-EZGC-HTML-Block_FR-300x70.png 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-EZGC-HTML-Block_FR-1024x238.png 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-EZGC-HTML-Block_FR-768x179.png 768w\" sizes=\"auto, (max-width: 1340px) 100vw, 1340px\" \/><\/a><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Lin\u00e9arit<\/em>\u00e9<\/h3>\n\n\n\n<p>La sym\u00e9trie des pics am\u00e9liore l\u2019int\u00e9gration et augmente le rapport signal\/bruit qui en r\u00e9sulte, ce qui permet d\u2019obtenir un \u00e9talonnage lin\u00e9aire \u00e0 des concentrations plus faibles. Les courbes d&#8217;\u00e9talonnage lin\u00e9aires ont \u00e9t\u00e9 \u00e9tablies pour chaque compos\u00e9 semi-volatil sur la colonne RMX-5Sil MS et elles variaient pour chaque analyte (Tableau II). Le nombre de points d&#8217;\u00e9talonnage variait de 5 \u00e0 11 et la concentration la plus faible allait de 0,5 \u00e0 100 ppb (0,1 \u00e0 20 pg \u00ab on-column \u00bb). Les param\u00e8tres d\u2019int\u00e9gration ont \u00e9t\u00e9 maintenus pour chaque colonne car la lin\u00e9arit\u00e9 de l\u2019\u00e9talonnage est sensible \u00e0 l\u2019int\u00e9gration des pics. Lorsque les pics se rapprochent de la ligne de base ou en cas de tra\u00een\u00e9e de pics excessives, l\u2019int\u00e9gration manuelle devient n\u00e9cessaire ce qui augmente le temps d\u2019analyse par \u00e9chantillon. D\u2019autres mod\u00e8les d&#8217;\u00e9talonnage peuvent \u00eatre appliqu\u00e9s, par exemple des courbes d&#8217;\u00e9talonnage pond\u00e9r\u00e9es ou quadratiques, mais dans l\u2019id\u00e9al l\u2019\u00e9talonnage doit \u00eatre lin\u00e9aire. En utilisant un mod\u00e8le lin\u00e9aire pour chaque analyte, le r\u00f4le de l\u2019int\u00e9gration des pics devient plus important. Toutefois, il convient de noter que le point d&#8217;\u00e9talonnage lin\u00e9aire le plus bas n\u2019est pas n\u00e9cessairement repr\u00e9sentatif de la limite de d\u00e9tection la plus basse.<\/p>\n\n\n\n<p><strong>Tableau II :<\/strong> Plage d&#8217;\u00e9talonnage \u00e0 partir des r\u00e9sultats et nombre de points d&#8217;\u00e9talonnage pour chaque compos\u00e9 semi-volatil<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th><strong>Nom<\/strong><\/th><th class=\"has-text-align-center\" data-align=\"center\"><strong><strong>Mini (ppb)<\/strong><\/strong><\/th><th class=\"has-text-align-center\" data-align=\"center\"><strong>Maxi (ppb<\/strong>)<\/th><th class=\"has-text-align-center\" data-align=\"center\"><strong>Nb de points<\/strong><\/th><\/tr><\/thead><tbody><tr><td>N-Nitrosodimethylamine<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><\/tr><tr><td>Pyridine<\/td><td class=\"has-text-align-center\" data-align=\"center\">50<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>2-Fluorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">20<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Phenol-d6<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Phenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Aniline<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>2-Chlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>2-Methylphenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>3- and 4-Methylphenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><\/tr><tr><td>Nitrobenzene-d5<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>2-Nitrophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>2,4-Dimethylphenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Benzoic acid<\/td><td class=\"has-text-align-center\" data-align=\"center\">100<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>2,4-Dichlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><\/tr><tr><td>Naphthalene<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">50<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>2,6-Dichlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">100<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>4-Chloroaniline<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>4-Chloro-3-methylphenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><\/tr><tr><td>2-Methylnaphthalene<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><\/tr><tr><td>1-Methylnaphthalene<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><\/tr><tr><td>2,4,6-Trichlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>2,4,5-Trichlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><\/tr><tr><td>2-Fluorobiphenyl<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">11<\/td><\/tr><tr><td>o-Nitroaniline<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">100<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Acenaphthylene<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>3-Nitroaniline<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">100<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Acenaphthene<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>2,4-Dinitrophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">50<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>4-Nitrophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><\/tr><tr><td>2,3,4,6-Tetrachlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>Fluorene<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">9<\/td><\/tr><tr><td>4-Nitroaniline<\/td><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>4,6-Dinitro-2-methylphenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">100<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Diphenylamine<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>2,4,6-Tribromophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">20<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>Pentachlorophenol<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Phenanthrene<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>Dinoseb<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Anthracene<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td>Fluoranthene<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Benzidine<\/td><td class=\"has-text-align-center\" data-align=\"center\">50<\/td><td class=\"has-text-align-center\" data-align=\"center\">2000<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Pyrene<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><td class=\"has-text-align-center\" data-align=\"center\">100<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>p-Terphenyl-d14<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td>3,3&#8242;-Dichlorobenzidine<\/td><td class=\"has-text-align-center\" data-align=\"center\">20<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Benz[a]anthracene<\/td><td class=\"has-text-align-center\" data-align=\"center\">20<\/td><td class=\"has-text-align-center\" data-align=\"center\">500<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Chrysene<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td>Benzo[b]fluoranthene<\/td><td class=\"has-text-align-center\" data-align=\"center\">20<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Apr\u00e8s avoir \u00e9tabli les courbes d&#8217;\u00e9talonnage lin\u00e9aires sur la colonne RMX-5Sil MS, de nouvelles courbes d&#8217;\u00e9talonnages ont \u00e9t\u00e9 r\u00e9alis\u00e9es sur chaque colonne en utilisant une plage d&#8217;\u00e9talonnage et des param\u00e8tres d\u2019int\u00e9gration identiques. L\u2019ajustement lin\u00e9aire de chaque courbe d&#8217;\u00e9talonnage a \u00e9t\u00e9 compar\u00e9 en utilisant la valeur R2 (non pond\u00e9r\u00e9e) et l&#8217;\u00e9cart-type relatif (%RSD). Les r\u00e9sultats ont montr\u00e9 que la colonne RMX-5Sil MS fournissait des r\u00e9sultats conformes \u00e0 la m\u00e9thode pour davantage de compos\u00e9s que les autres colonnes (Figure 4). Les valeurs R2 et %RSD (\u00e9cart-type relatif) pour la colonne RMX-5Sil MS d\u00e9montrent une meilleure lin\u00e9arit\u00e9 globale de la courbe d&#8217;\u00e9talonnage, ce qui am\u00e9liore la pr\u00e9cision et l\u2019exactitude quantitatives.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 4 :<\/strong> La colonne RMX-5Sil MS permet \u00e0 un plus grand nombre de compos\u00e9s semi volatils d\u2019atteindre les objectifs de qualit\u00e9 des donn\u00e9es (&gt;0,995 R\u00b2 et % RSD) par rapport aux autres colonnes, ce qui illustre une lin\u00e9arit\u00e9 d\u2019\u00e9talonnage sup\u00e9rieure.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"411\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/\/figure-EVAN4919-04-1024x411.jpg\" alt=\"\" class=\"wp-image-62841\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-04-1024x411.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-04-300x120.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-04-768x308.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-04.jpg 1340w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<\/div><\/div><\/div>\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Taux de r\u00e9cup\u00e9ration<\/em><\/h3>\n\n\n\n<p>Le taux de r\u00e9cup\u00e9ration a \u00e9t\u00e9 d\u00e9termin\u00e9 au point d&#8217;\u00e9talonnage le plus bas et au point interm\u00e9diaire (50 ppb) afin d\u2019\u00e9valuer l\u2019impact du choix de la colonne. La r\u00e9p\u00e9tabilit\u00e9 des taux de r\u00e9cup\u00e9ration a \u00e9t\u00e9 \u00e9valu\u00e9e au point interm\u00e9diaire de 50 ppb car celui-ci est plus repr\u00e9sentatif des performances des colonnes que le point d\u2019\u00e9talonnage le plus bas, o\u00f9 la forme des pics risque d\u2019\u00eatre influenc\u00e9e par les bruits de ligne de base g\u00e9n\u00e9r\u00e9s par l\u2019instrument. La Figure 5 montre que les taux de r\u00e9cup\u00e9rations au point d\u2019\u00e9talonnage le plus bas \u00e9taient bien meilleures sur la colonne RMX-5Sil MS que sur les autres colonnes test\u00e9es. Ce r\u00e9sultat peut \u00eatre attribu\u00e9 \u00e0 une d\u00e9sactivation plus efficace qui am\u00e9liore la r\u00e9ponse et l\u2019int\u00e9gration des pics pour l\u2019analyse de traces. Les taux de r\u00e9cup\u00e9rations \u00e9taient plut\u00f4t similaires pour toutes les colonnes au point interm\u00e9diaire de 50 ppb, mais les r\u00e9sultats de r\u00e9cup\u00e9ration \u00e9taient bien plus r\u00e9guliers sur la colonne RMX-5Sil MS. La r\u00e9p\u00e9tabilit\u00e9 d\u00e9pend du rapport entre la forme des pics et l&#8217;algorithme d\u2019int\u00e9gration, des l\u00e9g\u00e8res diff\u00e9rences dans la forme des pics peuvent affecter l\u2019int\u00e9gration. Les r\u00e9sultats tr\u00e8s r\u00e9guliers obtenus sur la colonne RMX-5Sil MS indiquent que sa d\u00e9sactivation TriMax r\u00e9duit le plus possible l\u2019activit\u00e9 de la surface qui contribue aux variations entre les injections.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 5 : <\/strong>La colonne RMX-5Sil MS a permis d\u2019atteindre un taux de r\u00e9cup\u00e9ration compris entre 70 et 130 % pour un plus grand nombre de compos\u00e9s, au point d&#8217;\u00e9talonnage le plus bas (LCP) comme \u00e0 50 ppb. En outre, elle pr\u00e9sente une grande r\u00e9gularit\u00e9 et permet d\u2019obtenir un \u00e9cart-type relatif &lt; 10 % \u00e0 50 ppb pour un plus grand nombre de compos\u00e9s.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"423\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/\/figure-EVAN4919-05-1024x423.jpg\" alt=\"\" class=\"wp-image-62829\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-05-1024x423.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-05-300x124.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-05-768x318.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-EVAN4919-05.jpg 1340w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<\/div><\/div><\/div>\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Les colonnes de type 5 et 5sil offrent une s\u00e9lectivit\u00e9 appropri\u00e9e pour l\u2019analyse des compos\u00e9s semi-volatils et elles sont tr\u00e8s utilis\u00e9es dans le monde entier, mais les d\u00e9sactivations classiques ne sont pas enti\u00e8rement efficaces pour bloquer les sites actifs. Par cons\u00e9quent, les laboratoires rencontrent des difficult\u00e9s pour analyser les compos\u00e9s actifs, surtout \u00e0 l\u2019\u00e9tat de traces. La productivit\u00e9 peut encore \u00eatre affect\u00e9e si plusieurs colonnes sont n\u00e9cessaires pour diff\u00e9rents groupes d\u2019analytes ou lorsque les crit\u00e8res de qualit\u00e9 ne sont plus suffisants[CC1.1][CC2.1]. D\u2019apr\u00e8s cette \u00e9tude comparative, la d\u00e9sactivation r\u00e9volutionnaire TriMax utilis\u00e9e dans les colonnes RMX-5Sil MS a permis d\u2019obtenir une surface bien plus inerte, offrant des performances sup\u00e9rieures pour l\u2019ensemble des classes de compos\u00e9s. Ainsi, l\u2019utilisation des colonnes RMX-5Sil MS a permis de respecter[CC3.1] les objectifs de qualit\u00e9 des donn\u00e9es pour un plus grand nombre de compos\u00e9s semi-volatils par rapport \u00e0 d\u2019autres colonnes analytiques. Cette performance am\u00e9lior\u00e9e pour une large gamme de compos\u00e9s acides, basiques et neutres offre aux laboratoires de nouvelles opportunit\u00e9s pour b\u00e9n\u00e9ficier d\u2019une r\u00e9duction de consommation de solvant et d\u2019une consolidation de m\u00e9thode par rapport aux colonnes de type 5 classiques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">R\u00e9f\u00e9rences&nbsp;<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>E. Pack, C. English, R. Dhandapani, and C. Myers, Increase lab efficiency with an expanded trace-level semivolatiles method, Featured application note, EVFA5253, Restek Corporation, 2025. <a href=\"https:\/\/discover.restek.com\/fr\/evfa5253\/?p=80225\">https:\/\/discover.restek.com\/articles\/evfa5253\/increase-lab-efficiency-with-an-expanded-trace-level-semivolatiles-method <\/a><\/li>\n<\/ol>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/discover.restek.com\/fr\/rmx\/\"><img loading=\"lazy\" decoding=\"async\" width=\"2040\" height=\"1976\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-What-Makes-RMX-Better-HTML-1-FR.png\" alt=\"\" class=\"wp-image-79859\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-What-Makes-RMX-Better-HTML-1-FR.png 2040w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-What-Makes-RMX-Better-HTML-1-FR-300x291.png 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-What-Makes-RMX-Better-HTML-1-FR-1024x992.png 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-What-Makes-RMX-Better-HTML-1-FR-768x744.png 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/RMX-Graphic-Ad-What-Makes-RMX-Better-HTML-1-FR-1536x1488.png 1536w\" sizes=\"auto, (max-width: 2040px) 100vw, 2040px\" \/><\/a><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Produits mentionn\u00e9s<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/fr.restek.com\/p\/17323\">                                Catalog No. 17323                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Colonne capillaire GC RMX-5Sil MS, L 30 m, DI 0.25 mm, 0.25 \u00b5m<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/fr.restek.com\/p\/17323\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23267\">                                Catalog No. 23267                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Insert Topaz Precision, 4.0\u00a0mm x 6.3 x 78.5, pour GC Thermo TRACE 1300\/1310, 1600\/1610 avec injecteur SSL, avec laine de quartz, d\u00e9sactivation Premium, lot de 5<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23267\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28500\">                                Catalog No. 28500                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">D\u00e9tecteur \u00e9lectronique de fuites de gaz Restek<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28500\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31907\">                                Catalog No. 31907                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Kit de solutions-\u00e9talons SVOC MegaMix 150, 1 ml\/ampoule ; 6 ampoules\/kit<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31907\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31615\">                                Catalog No. 31615                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Solution \u00e9talon pour le r\u00e9glage des GC-MS, 1000\u00a0\u00b5g\/ml, chlorure de m\u00e9thyl\u00e8ne, ampoule de 1 ml<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31615\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31025\">                                Catalog No. 31025                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Solution \u00e9talon de compos\u00e9s de substitution acides (4\/89 SOW), 2000 \u00b5g\/ml, m\u00e9thanol, ampoule de 1 ml<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31025\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31024\">                                Catalog No. 31024                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Solution \u00e9talon de compos\u00e9s de substitution basiques ou neutres (4\/89 SOW), 1000 \u00b5g\/ml, chlorure de m\u00e9thyl\u00e8ne, ampoule de 1 ml<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31024\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31886\">                                Catalog No. 31886                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">M\u00e9lange d\u2019\u00e9talons internes de SV r\u00e9vis\u00e9, 4000 \u00b5g\/ml, chlorure de m\u00e9thyl\u00e8ne, ampoule de 1\u00a0ml<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/31886\">Voir le produit<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une innovation majeure dans la d\u00e9sactivation des colonnes GC permet d&#8217;obtenir des r\u00e9sultats plus fiables pour les compos\u00e9s semi-volatils \u00e0 plus faibles concentrations. Les laboratoires peuvent ainsi impl\u00e9menter la GC-MS\/MS et tirer parti de gains de productivit\u00e9 li\u00e9s \u00e0 la micro-extraction et \u00e0 la consolidation des m\u00e9thodes.<\/p>\n","protected":false},"author":34,"featured_media":62824,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[782],"tags":[2743],"industries-application":[2210,2208,2758,2213],"post-badge":[2759],"resource-type":[],"product-library":[2456,2444],"resource-technique":[2316,2362,2320],"hf_cat_post":[2643,2755],"ppma_author":[454,447,441,2657,452],"class_list":["post-83620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notes-dapplication","tag-rmx-resources","industries-application-eau-potable-eaux-usees","industries-application-environnement","industries-application-semivolatiles","industries-application-sols-sediments-biote","post-badge-new","product-library-colonnes-gc","product-library-produits-pour-la-chromatographie-en-phase-gazeuse","resource-technique-chromatographie-en-phase-gazeuse-gc","resource-technique-ms-ms-fr","resource-technique-spectrometrie-de-masse-ms"],"acf":[],"taxonomy_info":{"category":[{"value":782,"label":"Notes 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