{"id":43829,"date":"2020-10-07T14:30:00","date_gmt":"2020-10-07T14:30:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/campionatori-d-aria-a-diffusione-passiva-radiello-versatilita-e-prestazioni-elevate\/"},"modified":"2026-01-28T21:59:57","modified_gmt":"2026-01-28T21:59:57","slug":"campionatori-d-aria-a-diffusione-passiva-radiello-versatilita-e-prestazioni-elevate","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/it\/articoli\/gnss2960-it\/campionatori-d-aria-a-diffusione-passiva-radiello-versatilita-e-prestazioni-elevate","title":{"rendered":"Campionatori d\u2019aria a diffusione passiva radiello: versatilit\u00e0 e prestazioni elevate"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>l design radiale 3D garantisce prestazioni migliori rispetto ai campionatori assiali 2D.<\/li>\n\n\n\n<li>Eccellente rilevabilit\u00e0 a bassi livelli anche per tempi&nbsp;di campionamento ridotti.<\/li>\n\n\n\n<li>L\u2019elevata capacit\u00e0 consente un campionamento accurato&nbsp;a lungo termine.<\/li>\n\n\n\n<li>Facile da usare: non serve nessuna pompa.<\/li>\n<\/ul>\n\n\n\n<p>I campionatori d\u2019aria a diffusione passiva radiello \u2013 ora compresi nel catalogo Restek \u2013 presentano un esclusivo design radiale 3D che offre&nbsp;diversi miglioramenti delle prestazioni rispetto ai normali dispositivi 2D assiali piatti. Questi campionatori sono un&#8217;alternativa affidabile ed&nbsp;economica che offre sia un&#8217;elevata sensibilit\u00e0 anche a bassi livelli di rilevabilit\u00e0 su tempi di campionamento brevi, sia una maggiore capacit\u00e0&nbsp;per ottenere risultati accurati su tempi di campionamento pi\u00f9 lunghi. I versatili campionatori d\u2019aria radiello sono disponibili per una vasta&nbsp;gamma di classi chimiche, quindi la scelta del materiale di campionamento pu\u00f2 essere adattata a specifiche applicazioni.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cosa li rende migliori?<\/h3>\n\n\n\n<p>Il design 3D cilindrico e coassiale dei campionatori d\u2019aria a diffusione passiva radiello crea un\u2019ampia superficie diffusiva a una distanza fissa e uniforme da una colonna centrale di adsorbimento. L\u2019aria entra da tutti i lati e gli analiti rimangono bloccati sull\u2019ampia superficie interna di adsorbimento. Questo si traduce in una maggiore capacit\u00e0 e in un tasso di assorbimento del campione molto pi\u00f9 elevato rispetto ai normali dispositivi 2D assiali piatti.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">I vantaggi dei campionatori radiello<\/h3>\n\n\n<style>.kb-image43829_bf913f-78.kb-image-is-ratio-size, .kb-image43829_bf913f-78 .kb-image-is-ratio-size{max-width:500px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image43829_bf913f-78.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image43829_bf913f-78 .kb-image-is-ratio-size{align-self:unset;}.kb-image43829_bf913f-78 figure{max-width:500px;}.kb-image43829_bf913f-78 .image-is-svg, .kb-image43829_bf913f-78 .image-is-svg img{width:100%;}.kb-image43829_bf913f-78:not(.kb-image-is-ratio-size) .kb-img, .kb-image43829_bf913f-78.kb-image-is-ratio-size{padding-top:var(--global-kb-spacing-xs, 1rem);padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kb-image43829_bf913f-78 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image43829_bf913f-78\"><figure class=\"alignright size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"763\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-01.jpg\" alt=\"\" class=\"kb-img wp-image-23258\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-01.jpg 700w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-01-275x300.jpg 275w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Un tasso di assorbimento del campione pi\u00f9 elevato assicura una sensibilit\u00e0 in parti per miliardo in volume per tempi di campionamento brevi.<\/li>\n\n\n\n<li>Una maggiore capacit\u00e0 offre invece un monitoraggio accurato a lungo termine.<\/li>\n\n\n\n<li>Facile da usare: non serve nessuna pompa.<\/li>\n\n\n\n<li>Non sono influenzati dalla velocit\u00e0 in facciata.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n<\/div><\/div><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Perch\u00e9 utilizzare i campionatori d\u2019aria radiello?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u2019esclusivo design radiale 3D non \u00e8 soggetto agli effetti della velocit\u00e0 in facciata e assicura tassi di assorbimento pi\u00f9 elevati rispetto ai normali dispositivi 2D assiali piatti.<\/li>\n\n\n\n<li>I tassi di assorbimento pi\u00f9 elevati offrono un&#8217;eccellente sensibilit\u00e0 anche a bassi livelli di rilevabilit\u00e0 e per tempi di campionamento brevi (fino a 15 minuti).<\/li>\n\n\n\n<li>Una maggiore capacit\u00e0 consente di campionare con precisione fino a 30 giorni senza distorsioni dovute a perdita di saturazione (breakthrough) o retrodiffusione.<\/li>\n\n\n\n<li>Il campionatore d&#8217;aria versatile e di facile utilizzo per un&#8217;ampia gamma di classi chimiche \u00e8 ideale per il monitoraggio ambientale, l\u2019intrusione di vapori, l\u2019igiene industriale e il campionamento personale dell&#8217;aria.<\/li>\n\n\n\n<li>Opzioni solvente e desorbimento termico disponibili.<\/li>\n\n\n\n<li>Dispone di un corpo diffusivo idrorepellente e contenitori riutilizzabili.<\/li>\n\n\n\n<li>Facile da usare: non serve nessuna pompa..<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Grazie all\u2019esclusivo design radiale 3D i campionatori d\u2019aria radiello garantiscono un tasso di assorbimento del campione molto pi\u00f9 elevato rispetto ai dispositivi standard 2D assiali.<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Composto<\/strong><\/th><th><strong>Campionatore a simmetria<br>radiale 3D radiello<br>Tasso di assorbimento (mL\/min)<\/strong><\/th><th><strong>Campionatore 2D assiale<br>Tasso di assorbimento (mL\/min)<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Methanol<\/td><td>125<\/td><td>N\/A<\/td><\/tr><tr><td>Ethanol<\/td><td>102<\/td><td>44<\/td><\/tr><tr><td>Acetone<\/td><td>77<\/td><td>40<\/td><\/tr><tr><td>Benzene<\/td><td>80<\/td><td>36<\/td><\/tr><tr><td>Methyl ethyl ketone<\/td><td>79<\/td><td>36<\/td><\/tr><tr><td>Toluene<\/td><td>74<\/td><td>31<\/td><\/tr><tr><td>Ethylbenzene<\/td><td>68<\/td><td>27<\/td><\/tr><tr><td><em>n<\/em>-Octane<\/td><td>53<\/td><td>27<\/td><\/tr><tr><td>Naphthalene<\/td><td>25<\/td><td>25<\/td><\/tr><tr><td colspan=\"3\">N\/A: non applicabile<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">I tassi di assorbimento del campione pi\u00f9 elevati si traducono in una maggiore&nbsp;sensibilit\u00e0 e in una buona rilevabilit\u00e0 a bassi livelli anche per tempio di&nbsp;campionamento brevi<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">I vantaggi dei campionatori radiello<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Una migliore risposta di tutti i composti rispetto ai campionatori assiali.<\/li>\n\n\n\n<li>Un miglioramento medio del 163% della risposta degli 8 composti indicati di seguito.<\/li>\n\n\n\n<li>Un\u2019eccellente riproducibilit\u00e0 con un coefficiente di variazione medio del 5,6%<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"466\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/\/figure-article-GNSS2960-02-1024x466.jpg\" alt=\"\" class=\"wp-image-23264\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-02-1024x466.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-02-300x137.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-02-768x350.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-02-1536x700.jpg 1536w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-02.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div><\/div><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">I campionatori radiello hanno una capacit\u00e0 pi\u00f9 elevata dei campionatori assiali,&nbsp;quindi \u00e8 possibile ottenere risultati accurati su tempi di campionamento pi\u00f9 lunghi<\/h3>\n\n\n\n<p>Nel campionamento attivo con pompa da vuoto si verifica il&nbsp;fenomeno della perdita di saturazione (breakthrough) quando&nbsp;la banda dell&#8217;analita inizia a lasciare il letto adsorbente. Se&nbsp;la concentrazione di analiti nell\u2019aria emergente supera del&nbsp;10% la concentrazione nell\u2019aria campionata, ogni ulteriore&nbsp;pompaggio porta alla perdita di analiti e a una sottostima&nbsp;della reale concentrazione ambientale. Un fenomeno simile,&nbsp;chiamato \u201cretrodiffusione\u201d, si verifica con il campionamento&nbsp;a diffusione. Bench\u00e9 i campionatori d\u2019aria radiello possano&nbsp;presentare fenomeni di retrodiffusione, l\u2019elevata capacit\u00e0 di&nbsp;questi dispositivi permette di trattare volumi di campione&nbsp;molto pi\u00f9 elevati prima che si osservi questo effetto.<\/p>\n\n\n\n<p>In questo confronto, il benzene viene attivamente campionato&nbsp;(pompato) in un adsorbente in carbone attivo e anche&nbsp;campionato a diffusione con un campionatore radiello 130&nbsp;(in entrambi a casi a 25 \u00b0C). Con l\u2019adsorbente in carbone&nbsp;attivo (linee continue), la perdita per saturazione vien&nbsp;raggiunta a 35, 44 e 49 litri, quando la concentrazione di&nbsp;benzene \u00e8 di rispettivamente 100, 50 e 10 \u03bcg\/m\u00b3. Al contrario,&nbsp;con il campionatore d\u2019aria radiello (linee tratteggiate) la&nbsp;retrodiffusione non si verifica fino a 1600, 2300 e 3500 litri alle&nbsp;stesse concentrazioni.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"599\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/\/figure-article-GNSS2960-03-1024x599.jpg\" alt=\"\" class=\"wp-image-23270\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-03-1024x599.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-03-300x176.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-03-768x449.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-03-1536x899.jpg 1536w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNSS2960-03.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div><\/div><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Possibili applicazioni: radiello 145<\/h3>\n\n\n\n<p>Il campionatore d\u2019aria radiello 145 (RAD145) \u00e8 progettato appositamente per composti organici volatili nell\u2019aria (VOC). Il design radiale&nbsp;diffusivo 3D fornisce tassi di assorbimento molto pi\u00f9 elevati e una maggiore capacit\u00e0 rispetto ai normali campionatori 2D assiali piatti diffusivi.&nbsp;Un pi\u00f9 alto tasso di assorbimento del campione rende possibile rilevare livelli in parti per miliardo in volume di composti organici volatili&nbsp;nell\u2019aria (VOC) con tempi molto brevi di campionamento.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\">Campionamento di aria (4 ore) del centro di spedizione con radiello 145<\/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_ar1171.png\" alt=\"4-Hr Shipping Facility Air Sample with radiello 145\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_AR1171<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 col-12 peak-50\">\n<thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Propene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/115-07-1\/Propene\" target=\"_blank\" rel=\"noopener\">Propene<\/a><\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Methyl-1-propene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/115-11-7\/2-Methyl-1-propene\" target=\"_blank\" rel=\"noopener\">2-Methyl-1-propene<\/a><\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetaldehyde\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/75-07-0\/Acetaldehyde\" target=\"_blank\" rel=\"noopener\">Acetaldehyde<\/a><\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Methylbutane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/78-78-4\/2-Methylbutane\" target=\"_blank\" rel=\"noopener\">2-Methylbutane<\/a><\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Pentane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/109-66-0\/Pentane\" target=\"_blank\" rel=\"noopener\">Pentane<\/a><\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Furan\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/110-00-9\/Furan\" target=\"_blank\" rel=\"noopener\">Furan<\/a><\/td><\/tr>\n<\/tbody><\/table>\n<table class=\"peaks col-lg-6 col-12 peak-50\"><thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Methylene chloride\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/75-09-2\/Methylene chloride\" target=\"_blank\" rel=\"noopener\">Methylene chloride<\/a><\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Hexane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/110-54-3\/Hexane\" target=\"_blank\" rel=\"noopener\">Hexane<\/a><\/td><\/tr>\n<tr><td class=\"num\">9.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetonitrile\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/75-05-8\/Acetonitrile\" target=\"_blank\" rel=\"noopener\">Acetonitrile<\/a><\/td><\/tr>\n<tr><td class=\"num\">10.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/71-43-2\/Benzene\" target=\"_blank\" rel=\"noopener\">Benzene<\/a><\/td><\/tr>\n<tr><td class=\"num\">11.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Toluene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/108-88-3\/Toluene\" target=\"_blank\" rel=\"noopener\">Toluene<\/a><\/td><\/tr>\n<tr><td class=\"num\">12.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Chlorobenzene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/108-90-7\/Chlorobenzene\" target=\"_blank\" rel=\"noopener\">Chlorobenzene<\/a><\/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>Rtx-VMS, 60 m, 0.25 mm ID, 1.40 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/19916?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR1171\" rel=\"noopener\">cat.# 19916<\/a>)<\/td><\/tr><tr><td><\/td><td>with MXT low-dead-volume connector (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/20536?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR1171\" rel=\"noopener\">cat.# 20536<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>Shipping facility air sample<\/td><\/tr>\n<tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td>on-column<\/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 7 min) to 250 &#176;C at 30 &#176;C\/min (hold 2 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>2.0 mL\/min<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>Scan<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Scan Program:<\/th><td><\/td><\/tr><tr><td style=\"text-align:left\" colspan=\"2\"><table class=\"conditions_sim\"><thead><tr><th style=\"padding: 0 5px\">Group<\/th><th style=\"padding: 0 5px\">Start Time<br \/>(min)<\/th><th style=\"padding: 0 5px\">Scan Range<br \/>(amu)<\/th><th style=\"padding: 0 5px\">Scan Rate<br \/>(scans\/sec)<\/th><\/tr><\/thead><tbody><tr><td>2<\/td><td>8.80<\/td><td>38<\/td><td>226<\/td><\/tr><\/tbody><\/table><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Transfer Line Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Analyzer Type:<\/th><td>Quadrupole <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Source Type:<\/th><td>Extractor <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Extractor Lens:<\/th><td>6 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Source Temp.:<\/th><td>230 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Quad Temp.:<\/th><td>150 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Electron Energy:<\/th><td>70 eV<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Tune Type:<\/th><td>BFB <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ionization Mode:<\/th><td>EI <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Preconcentrator<\/th><td>Markes Unity<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">&nbsp;&nbsp;Trap 1 Settings<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Type\/Sorbent :<\/th><td>radiello 145 <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb temp.:<\/th><td>350 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb flow:<\/th><td>50 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb time:<\/th><td>300 sec<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">&nbsp;&nbsp;Trap 2 Settings<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Type\/Sorbent:<\/th><td>Air Toxics <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Cooling temp.:<\/th><td>30 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb temp.:<\/th><td>310 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb time:<\/th><td>3 sec<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC &amp; 5977A MSD<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The radiello 145 passive air sampler (RAD145) utilizes a stainless steel net cartridge packed with 350 mg of graphitized charcoal (Carbograph 4). Airborne volatile organic compounds (VOCs) were adsorbed to the charcoal and then thermally desorbed and analyzed by GC-MS.<br \/><br \/>Trap 1 conditions were used for radiello desorption. Trap 2 conditions were used for Unity desorption.<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ar1171.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<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_ar1170.png\" alt=\"16-Hr Laboratory Air Sample with radiello 145\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_AR1170<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-4 col-12\">\n<thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Propene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/115-07-1\/Propene\" target=\"_blank\" rel=\"noopener\">Propene<\/a><\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Methyl-1-propene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/115-11-7\/2-Methyl-1-propene\" target=\"_blank\" rel=\"noopener\">2-Methyl-1-propene<\/a><\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetaldehyde\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/75-07-0\/Acetaldehyde\" target=\"_blank\" rel=\"noopener\">Acetaldehyde<\/a><\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetone\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/67-64-1\/Acetone\" target=\"_blank\" rel=\"noopener\">Acetone<\/a><\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Hexane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/110-54-3\/Hexane\" target=\"_blank\" rel=\"noopener\">Hexane<\/a><\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Butanal\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/123-72-8\/Butanal\" target=\"_blank\" rel=\"noopener\">Butanal<\/a><\/td><\/tr>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetic acid\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/64-19-7\/Acetic acid\" target=\"_blank\" rel=\"noopener\">Acetic acid<\/a><\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Toluene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/108-88-3\/Toluene\" target=\"_blank\" rel=\"noopener\">Toluene<\/a><\/td><\/tr>\n<tr><td class=\"num\">9.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for D-Limonene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/5989-27-5\/D-Limonene\" target=\"_blank\" rel=\"noopener\">D-Limonene<\/a><\/td><\/tr>\n<tr><td class=\"num\">10.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Benzaldehyde\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/100-52-7\/Benzaldehyde\" target=\"_blank\" rel=\"noopener\">Benzaldehyde<\/a><\/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>Rtx-VMS, 60 m, 0.25 mm ID, 1.40 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/19916?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR1170\" rel=\"noopener\">cat.# 19916<\/a>)<\/td><\/tr><tr><td><\/td><td>with MXT low-dead-volume connector (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/20536?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR1170\" rel=\"noopener\">cat.# 20536<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>Laboratory air sample<\/td><\/tr>\n<tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td>on-column<\/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 7 min) to 250 &#176;C at 30 &#176;C\/min (hold 2 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>2.0 mL\/min<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>Scan<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Scan Program:<\/th><td><\/td><\/tr><tr><td style=\"text-align:left\" colspan=\"2\"><table class=\"conditions_sim\"><thead><tr><th style=\"padding: 0 5px\">Group<\/th><th style=\"padding: 0 5px\">Start Time<br \/>(min)<\/th><th style=\"padding: 0 5px\">Scan Range<br \/>(amu)<\/th><th style=\"padding: 0 5px\">Scan Rate<br \/>(scans\/sec)<\/th><\/tr><\/thead><tbody><tr><td>2<\/td><td>8.80<\/td><td>38<\/td><td>226<\/td><\/tr><\/tbody><\/table><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Transfer Line Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Analyzer Type:<\/th><td>Quadrupole <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Source Type:<\/th><td>Extractor <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Extractor Lens:<\/th><td>6 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Source Temp.:<\/th><td>230 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Quad Temp.:<\/th><td>150 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Electron Energy:<\/th><td>70 eV<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Tune Type:<\/th><td>BFB <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ionization Mode:<\/th><td>EI <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Preconcentrator<\/th><td>Markes Unity<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">&nbsp;&nbsp;Trap 1 Settings<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Type\/Sorbent :<\/th><td>radiello 145 <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb temp.:<\/th><td>350 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb flow:<\/th><td>50 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb time:<\/th><td>300 sec<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">&nbsp;&nbsp;Trap 2 Settings<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Type\/Sorbent:<\/th><td>Air Toxics <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Cooling temp.:<\/th><td>30 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb temp.:<\/th><td>310 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">&nbsp;&nbsp;Desorb time:<\/th><td>3 sec<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC &amp; 5977A MSD<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The radiello 145 passive air sampler (RAD145) utilizes a stainless steel net cartridge packed with 350 mg of graphitized charcoal (Carbograph 4). Airborne volatile organic compounds (VOCs) were adsorbed to the charcoal and then thermally desorbed and analyzed by GC-MS.<br \/><br \/>Trap 1 conditions were used for radiello desorption. Trap 2 conditions were used for Unity desorption.<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ar1170.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:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Possibili applicazioni: radiello 165<\/h3>\n\n\n\n<p>Monitorare i carbonili (aldeidi e chetoni) nell\u2019aria \u00e8 importante per proteggere la salute umana e ambientale. Un campionatore d\u2019aria a&nbsp;diffusione passiva radiello 165 (RAD165) \u00e8 ideale per raccogliere questi composti dall&#8217;aria sia interna che atmosferica. Il design radiale 3D&nbsp;assicura tassi di assorbimento elevati, permettendo una rilevabilit\u00e0 a livello di parti per miliardo in volume. L\u2019ampia capacit\u00e0 rende possibili&nbsp;tempi di campionamento pi\u00f9 lunghi quando desiderato.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\">Campionamento di aria (16 ore) del centro di spedizione con radiello 165<\/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 regular-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ar0508.png\" alt=\"16-Hr Laboratory Air Sample with radiello 165\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_AR0508<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-4 col-12\">\n<thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><th style=\"text-align: center;width: 50px\">t<sub>R<\/sub> (min)<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Formaldehyde-DNPH\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1081-15-8\/Formaldehyde-DNPH\" target=\"_blank\" rel=\"noopener\">Formaldehyde-DNPH<\/a><\/td><td class=\"oth\">2.80<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetaldehyde-DNPH\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1019-57-4\/Acetaldehyde-DNPH\" target=\"_blank\" rel=\"noopener\">Acetaldehyde-DNPH<\/a><\/td><td class=\"oth\">3.47<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Acetone-DNPH\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1567-89-1\/Acetone-DNPH\" target=\"_blank\" rel=\"noopener\">Acetone-DNPH<\/a><\/td><td class=\"oth\">4.55<\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for n-Butyraldehyde-DNPH\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1527-98-6\/n-Butyraldehyde-DNPH\" target=\"_blank\" rel=\"noopener\">n-Butyraldehyde-DNPH<\/a><\/td><td class=\"oth\">6.58<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Hexanal-DNPH\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1527-97-5\/Hexanal-DNPH\" target=\"_blank\" rel=\"noopener\">Hexanal-DNPH<\/a><\/td><td class=\"oth\">10.10<\/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>Raptor C18  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/9304A65?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_AR0508\" rel=\"noopener\">cat.# 9304A65<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>150 mm x 4.6 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>2.7 \u00b5m<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Pore Size:<\/th><td>90 \u00c5<\/td><\/tr><tr><td><\/td><tr><th class=\"sub conditions_header\" scope=\"row\">Temp.:<\/th><td>30 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>Laboratory air sample<\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>2 mL acetonitrile extract<\/td><\/tr><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>5 \u00b5L <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Mobile Phase<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">A:<\/th><td>Water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>Methanol:acetonitrile (650:50)* <\/td><\/tr><tr><td><\/td><td><table class=\"cgram_ramp\"><thead><tr><th>Time (min)<\/th><th>Flow (mL\/min)<\/th><th>%A<\/th><th>%B<\/th><\/tr><\/thead><tbody><tr><td>0.00<\/td><td>0.8<\/td><td>30<\/td><td>70<\/td><\/tr><tr><td>5.00<\/td><td>0.8<\/td><td>25<\/td><td>75<\/td><\/tr><tr><td>11.00<\/td><td>0.8<\/td><td>10<\/td><td>90<\/td><\/tr><tr><td>11.01<\/td><td>0.8<\/td><td>0<\/td><td>100<\/td><\/tr><tr><td>12.00<\/td><td>0.8<\/td><td>0<\/td><td>100<\/td><\/tr><tr><td>12.01<\/td><td>0.8<\/td><td>30<\/td><td>70<\/td><\/tr><tr><td>14.00<\/td><td>0.8<\/td><td>30<\/td><td>70<\/td><\/tr><\/tbody><\/table><\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>UV\/Vis @ 365, 4.8 nm<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Preconcentrator<\/th><td>radiello 165<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Waters ACQUITY UPLC H-Class<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The radiello 165 passive air sampler (RAD165) utilizes a stainless steel net cartridge filled with 2,4-dinitrophenylhydrazine (DNPH) coated Florisil adsorbent. Airborne carbonyls react with the DNPH to form stable hydrazones. The derivatives were subsequently extracted for 30 minutes with 2 mL of acetonitrile. The extract was then analyzed by LC-UV.<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Notes<\/th><td>*Mobile phase B was prepared by combining 650 mL methanol and 50 mL acetonitrile.<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ar0508.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:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>I campionatori d\u2019aria a diffusione passiva radiello \u2013 ora compresi nel catalogo Restek \u2013 presentano un esclusivo design radiale 3D che offre\u00a0diversi miglioramenti delle prestazioni rispetto ai normali dispositivi 2D assiali piatti. Questi campionatori sono un&#8217;alternativa affidabile ed\u00a0economica che offre sia un&#8217;elevata sensibilit\u00e0 anche a bassi livelli di rilevabilit\u00e0 su tempi di campionamento brevi, sia una maggiore capacit\u00e0\u00a0per ottenere risultati accurati su tempi di campionamento pi\u00f9 lunghi. I versatili campionatori d\u2019aria radiello sono disponibili per una vasta\u00a0gamma di classi chimiche, quindi la scelta del materiale di campionamento pu\u00f2 essere adattata a specifiche applicazioni.<\/p>\n","protected":false},"author":11,"featured_media":0,"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":[788],"tags":[],"industries-application":[2253,2254,2256],"post-badge":[],"resource-type":[],"product-library":[2525,2515],"resource-technique":[2331],"ppma_author":[414],"class_list":["post-43829","post","type-post","status-publish","format-standard","hentry","category-articoli","industries-application-ambientale","industries-application-analisi-dellaria","industries-application-igiene-industriale","product-library-campionatori-daria-personali-accessori","product-library-prodotti-per-campionamento-dellaria-e-dei-gas","resource-technique-campionamento-dellaria"],"acf":[],"taxonomy_info":{"category":[{"value":788,"label":"Articoli"}],"industries-application":[{"value":2253,"label":"Ambientale"},{"value":2254,"label":"Analisi dell\u2019Aria"},{"value":2256,"label":"Igiene Industriale"}],"product-library":[{"value":2525,"label":"Campionatori d\u2019Aria Personali e Accessori"},{"value":2515,"label":"Prodotti per Campionamento dell'Aria e dei Gas"}],"resource-technique":[{"value":2331,"label":"Campionamento dell\u2019Aria"}]},"featured_image_src_large":false,"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/it\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":788,"name":"Articoli","slug":"articoli","term_group":0,"term_taxonomy_id":788,"taxonomy":"category","description":"","parent":0,"count":467,"filter":"raw","cat_ID":788,"category_count":467,"category_description":"","cat_name":"Articoli","category_nicename":"articoli","category_parent":0}],"tag_info":false,"authors":[{"term_id":414,"user_id":11,"is_guest":0,"slug":"restek-corporation","display_name":"Restek Corporation","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts\/43829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/comments?post=43829"}],"version-history":[{"count":22,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts\/43829\/revisions"}],"predecessor-version":[{"id":85749,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts\/43829\/revisions\/85749"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/media?parent=43829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/categories?post=43829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/tags?post=43829"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/industries-application?post=43829"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/post-badge?post=43829"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/resource-type?post=43829"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/product-library?post=43829"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/resource-technique?post=43829"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/ppma_author?post=43829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}