{"id":43719,"date":"2020-12-22T23:00:00","date_gmt":"2020-12-22T23:00:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/raptor-fluorophenyl-lc-columns-brochure\/"},"modified":"2026-01-03T14:32:44","modified_gmt":"2026-01-03T14:32:44","slug":"raptor-fluorophenyl-lc-columns-brochure","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/de\/articles\/gnbr2368\/raptor-fluorophenyl-lc-columns-brochure","title":{"rendered":"Raptor FluoroPhenyl: Get the Power of HILIC and RP Modes in One LC Column"},"content":{"rendered":"\n<p>With Raptor LC columns, Restek chemists became the first to combine the speed of 2.7 and 5 \u03bcm superficially porous particles (also known as SPP or \u201ccore-shell\u201d particles) with the resolution of highly selective USLC technology, improving separations and speeding up analysis times with standard HPLC instruments. Raptor then evolved to bring that same improved speed, efficiency, and selectivity to UHPLC analyses by offering 1.8 \u03bcm particle columns. Learn more about Raptor LC columns at <a href=\"https:\/\/www.restek.com\/articles\/raptor-lc-columns\" data-type=\"link\" data-id=\"https:\/\/www.restek.com\/articles\/raptor-lc-columns\" target=\"_blank\" rel=\"noopener\">www.restek.com\/raptor<\/a><\/p>\n\n\n\n<p>With the addition of Raptor FluoroPhenyl columns, Restek further expanded the speed and reliability of Raptor column technology into the HILIC realm. Restek\u2019s Raptor FluoroPhenyl phase offers chromatographers the ability to run in reversed-phase or HILIC mode for a variety of compounds. The Restek Raptor FluoroPhenyl column is also amenable to LC-MS because it is extremely reliable and efficient with acidic mobile phases.<\/p>\n\n\n\n<p>Switch to a Raptor FluoroPhenyl LC column for reliable performance in <em>both<\/em> reversed-phase and HILIC modes.<\/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<h3 class=\"wp-block-heading\">Column Description:<\/h3>\n\n\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\"><style>.kb-image43719_4ce27d-3f.kb-image-is-ratio-size, .kb-image43719_4ce27d-3f .kb-image-is-ratio-size{max-width:225px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image43719_4ce27d-3f.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image43719_4ce27d-3f .kb-image-is-ratio-size{align-self:unset;}.kb-image43719_4ce27d-3f figure{max-width:225px;}.kb-image43719_4ce27d-3f .image-is-svg, .kb-image43719_4ce27d-3f .image-is-svg img{width:100%;}.kb-image43719_4ce27d-3f:not(.kb-image-is-ratio-size) .kb-img, .kb-image43719_4ce27d-3f.kb-image-is-ratio-size{padding-top:var(--global-kb-spacing-xs, 1rem);}.kb-image43719_4ce27d-3f .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image43719_4ce27d-3f\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"408\" height=\"1024\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-408x1024.jpg\" alt=\"\" class=\"kb-img wp-image-61613\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-408x1024.jpg 408w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-119x300.jpg 119w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-768x1928.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-612x1536.jpg 612w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-816x2048.jpg 816w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-ligand-gnbr2368b-01-1-scaled.jpg 1020w\" sizes=\"auto, (max-width: 408px) 100vw, 408px\" \/><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Stationary Phase Category:<\/h4>\n\n\n\n<p>Pentafluorophenyl propyl (L43)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Ligand Type:<\/h4>\n\n\n\n<p>Fluorophenyl<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Particle:<\/h4>\n\n\n\n<p>1.8 \u03bcm, 2.7 \u03bcm, or 5 \u03bcm superficially porous particle (SPP or \u201ccore-shell\u201d particle) silica<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Pore Size:<\/h4>\n\n\n\n<p>90 \u00c5<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Surface Area:<\/h4>\n\n\n\n<p>125 m<sup>2<\/sup>\/g (1.8 \u03bcm),<br>130 m<sup>2<\/sup>\/g (2.7 \u03bcm),<br>or 100 m<sup>2<\/sup>\/g (5 \u03bcm)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Recommended Usage:<\/h4>\n\n\n\n<p>pH Range: 2.0\u20138.0<br>Maximum Temperature: 80 \u00b0C<br>Maximum Pressure: 1034 bar\/15,000 psi* (1.8 \u03bcm),<br>600 bar\/8700 psi (2.7 \u03bcm); 400 bar\/5800 psi (5 \u03bcm)<br><em>* For maximum lifetime, recommended maximum pressure for 1.8 \u03bcm particles is&nbsp;<\/em><em>830 bar\/12,000 psi.<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Properties:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Capable of both reversed-phase and HILIC separations.<\/li>\n\n\n\n<li>Ideal for increasing sensitivity and selectivity in LC-MS analyses.<\/li>\n\n\n\n<li>Offers increased retention for charged bases.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Switch to a Raptor FluoroPhenyl LC column when:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You observe limited retention and selectivity on a C18 for&nbsp;basic compounds<\/li>\n\n\n\n<li>You need increased retention of hydrophilic compounds.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\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\">Column Interaction Profile:<\/h3>\n\n\n<style>.kb-image43719_64f698-f6.kb-image-is-ratio-size, .kb-image43719_64f698-f6 .kb-image-is-ratio-size{max-width:350px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image43719_64f698-f6.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image43719_64f698-f6 .kb-image-is-ratio-size{align-self:unset;}.kb-image43719_64f698-f6{max-width:350px;}.image-is-svg.kb-image43719_64f698-f6{-webkit-flex:0 1 100%;flex:0 1 100%;}.image-is-svg.kb-image43719_64f698-f6 img{width:100%;}.kb-image43719_64f698-f6:not(.kb-image-is-ratio-size) .kb-img, .kb-image43719_64f698-f6.kb-image-is-ratio-size{padding-right:var(--global-kb-spacing-xxs, 0.5rem);padding-left:var(--global-kb-spacing-xxs, 0.5rem);}.kb-image43719_64f698-f6 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image43719_64f698-f6 size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"432\" height=\"510\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-profile-gnbr1891c-01.jpg\" alt=\"\" class=\"kb-img wp-image-12238\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-profile-gnbr1891c-01.jpg 432w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-profile-gnbr1891c-01-254x300.jpg 254w\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Defining Solute Interactions:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cation exchange<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Complementary Solute Interaction:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polarizability<\/li>\n\n\n\n<li>Dispersion<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Solute Retention Profile:<\/h3>\n\n\n<style>.kb-image43719_9fe20c-20.kb-image-is-ratio-size, .kb-image43719_9fe20c-20 .kb-image-is-ratio-size{max-width:550px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image43719_9fe20c-20.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image43719_9fe20c-20 .kb-image-is-ratio-size{align-self:unset;}.kb-image43719_9fe20c-20{max-width:550px;}.image-is-svg.kb-image43719_9fe20c-20{-webkit-flex:0 1 100%;flex:0 1 100%;}.image-is-svg.kb-image43719_9fe20c-20 img{width:100%;}.kb-image43719_9fe20c-20:not(.kb-image-is-ratio-size) .kb-img, .kb-image43719_9fe20c-20.kb-image-is-ratio-size{padding-right:var(--global-kb-spacing-xxs, 0.5rem);padding-left:var(--global-kb-spacing-xxs, 0.5rem);}.kb-image43719_9fe20c-20 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image43719_9fe20c-20 size-medium_large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"409\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-graph-gnbr2368b-01-1-768x409.jpg\" alt=\"\" class=\"kb-img wp-image-61619\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-graph-gnbr2368b-01-1-768x409.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-graph-gnbr2368b-01-1-300x160.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-graph-gnbr2368b-01-1-1024x546.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-graph-gnbr2368b-01-1-1536x818.jpg 1536w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-graph-gnbr2368b-01-1.jpg 1800w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Target Analyte Structures:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nitrogen-containing<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Target Analyte Functionalities:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Protonated amines<\/li>\n\n\n\n<li>Quaternary ammonium compounds<\/li>\n\n\n\n<li>Positively charged moieties<\/li>\n\n\n\n<li>Lewis bases<\/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<h2 class=\"wp-block-heading\">Raptor FluoroPhenyl LC Columns: Rugged, Check\u2014Reproducible, Double Check.<\/h2>\n\n\n\n<p>Of course, Raptor FluoroPhenyl columns are rugged; that is to be expected. And, they are exceptionally reproducible as well. Reproducibility can be an issue for fluorinated phenyl phases, which is why we engineered all our columns for dependable performance. Lot to lot, column to column, and injection to injection, every Raptor FluoroPhenyl column gives a consistent performance that you can count on: consider it done.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 1:<\/strong>\u00a0Raptor FluoroPhenyl columns maintain efficiency in any dimension or particle size\u2014even at their maximum recommended operating pressures\u2014so you can run at high linear velocities with confidence.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n<style>.kb-image43719_79d28a-17 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image43719_79d28a-17\"><img decoding=\"async\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-figure-gnbr2368b-01.jpg\" alt=\"\" class=\"kb-img\" title=\"-\"><\/figure>\n\n<\/div><\/div><\/div>\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 2:<\/strong>\u00a0Strict quality control ensures Raptor FluoroPhenyl columns are exceptionally reproducible, so you get predictable performance from every column.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-9e4f48b11b8d1ac54baaa3caeb7681be\" style=\"color:#68bd45\">Reliable, reproducible fluorophenyl column performance.<\/h3>\n\n\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_ba0352.png\" alt=\"Taxanes Lot to Lot Comparison on Raptor\u2122 FluoroPhenyl\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_BA0352<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 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\">Precursor Ion<\/th><th style=\"text-align: center;width: 75px\">Product Ion 1<\/th><th style=\"text-align: center;width: 75px\">Product Ion 2<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\">Baccatin III<\/td><td class=\"oth\">0.97<\/td><td class=\"oth\">587.0<\/td><td class=\"oth\">405.1<\/td><td class=\"oth\">105.0<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\">Docetaxel<\/td><td class=\"oth\">1.25<\/td><td class=\"oth\">808.1<\/td><td class=\"oth\">527.3<\/td><td class=\"oth\">226.1<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Paclitaxel\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/33069-62-4\/Paclitaxel\" target=\"_blank\" rel=\"noopener\">Paclitaxel<\/a><\/td><td class=\"oth\">1.33<\/td><td class=\"oth\">854.1<\/td><td class=\"oth\">569.3<\/td><td class=\"oth\">286.2<\/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\u2122 FluoroPhenyl  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/931955E?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_BA0352\" rel=\"noopener\">cat.# 931955E<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>50 mm x 3 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>5 \u00b5m<\/td><\/tr><tr><td><\/td><tr><th class=\"sub conditions_header\" scope=\"row\">Temp.:<\/th><td>35 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Water<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>100  ng\/mL<\/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>0.1% Formic acid in water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>0.1% Formic acid in acetonitrile <\/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>75<\/td><td>25<\/td><\/tr><tr><td>2.00<\/td><td>0.8<\/td><td>5<\/td><td>95<\/td><\/tr><tr><td>2.01<\/td><td>0.8<\/td><td>75<\/td><td>25<\/td><\/tr><tr><td>3.50<\/td><td>0.8<\/td><td>75<\/td><td>25<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>UHPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ba0352.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<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 3:<\/strong>\u00a0From start to finish, Raptor FluoroPhenyl columns provide accurate, reproducible results.<\/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_ff0561.png\" alt=\"4-Methylimidazole Lifetime Over 500 Injection on Raptor FluoroPhenyl\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_FF0561<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 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\">Precursor Ion<\/th><th style=\"text-align: center;width: 75px\">Product Ion<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4-Methylimidazole (4-MEI)\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/822-36-6\/4-Methylimidazole\" target=\"_blank\" rel=\"noopener\">4-Methylimidazole (4-MEI)<\/a><\/td><td class=\"oth\">1.19<\/td><td class=\"oth\">83<\/td><td class=\"oth\">56<\/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 FluoroPhenyl  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/9319A52?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_FF0561\" rel=\"noopener\">cat.# 9319A52<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>50 mm x 2.1 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>2.7 \u00b5m<\/td><\/tr><tr><td><\/td><tr><th class=\"sub conditions_header\" scope=\"row\">Temp.:<\/th><td>35 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Acetonitrile<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>100 ng\/mL<\/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>0.1% Formic acid in water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>0.1% Formic acid in acetonitrile <\/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>0.6<\/td><td>5<\/td><td>95<\/td><\/tr><tr><td>2.00<\/td><td>0.6<\/td><td>70<\/td><td>30<\/td><\/tr><tr><td>2.01<\/td><td>0.6<\/td><td>5<\/td><td>95<\/td><\/tr><tr><td>3.50<\/td><td>0.6<\/td><td>5<\/td><td>95<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>UHPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ff0561.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<h2 class=\"wp-block-heading\">More Separating Power than a C18<\/h2>\n\n\n\n<p>C18 columns work well for many compounds, but they just don\u2019t work for everything. Raptor FluoroPhenyl columns can provide greater selectivity and retention for analytes that are not easily separated by C18 phase chemistry. For example, interest in vitamin D status is on the rise in clinical diagnostics, but accurate analysis is only possible if the epimeric forms of both vitamin D2 and D3 25-hydroxy metabolites can be distinguished. Typical reversed-phase C18 columns cannot separate these isobaric epimers, which differ in bioactivity, but the new Raptor FluoroPhenyl column provides adequate chromatographic resolution so accurate results are generated and the proper diagnosis can be made.<\/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>\u00a0Reversed-phase C18 columns do not have the right selectivity or retention mechanism to separate the epimers of vitamin D2 and D3 25-hydroxy metabolites.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-9801ff1b3379c46fc8a0343d98ace68b\" style=\"color:#68bd45\">Epimers do not separate on a C18, even in a 14-minute analysis time.<\/h3>\n\n\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_cf0649.png\" alt=\"25-Hydroxyvitamin D2\/D3 and 3-Epi-25-Hydroxyvitamin D2\/D3 on Raptor\u2122 ARC-18 by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_CF0649<\/p><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 ARC-18  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/9314A12?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_CF0649\" rel=\"noopener\">cat.# 9314A12<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>100 mm x 2.1 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>2.7 \u00b5m<\/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><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Water:methanol (50:50)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>25-50 ng\/mL<\/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>0.1% Formic acid in water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>Methanol <\/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>0.5<\/td><td>25<\/td><td>75<\/td><\/tr><tr><td>4.00<\/td><td>0.5<\/td><td>20<\/td><td>80<\/td><\/tr><tr><td>12.00<\/td><td>0.5<\/td><td>20<\/td><td>80<\/td><\/tr><tr><td>12.10<\/td><td>0.5<\/td><td>25<\/td><td>75<\/td><\/tr><tr><td>14.00<\/td><td>0.5<\/td><td>25<\/td><td>75<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>HPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>9314A12<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_cf0649.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<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 5:<\/strong>\u00a0Raptor FluoroPhenyl columns have the selectivity and retention you need to quickly and easily separate compounds that coelute on a C18, such as the epimeric forms of vitamin D2 and D3 25-hydroxy metabolites.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-79e0c9df9b138ce25c2daab32b67cb26\" style=\"color:#68bd45\">Raptor FluoroPhenyl columns easily separate compounds that coelute on a C18.<\/h3>\n\n\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_cf0644.png\" alt=\"25-Hydroxyvitamin D2\/D3 and 3-Epi-25-Hydroxyvitamin D2\/D3 on Raptor FluoroPhenyl by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_CF0644<\/p><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 FluoroPhenyl  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/9319A1E?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_CF0644\" rel=\"noopener\">cat.# 9319A1E<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>100 mm x 3 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>2.7 \u00b5m<\/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><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Water:methanol (50:50)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>25-50 ng\/mL<\/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>0.1% Formic acid in water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>Methanol <\/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>0.6<\/td><td>25<\/td><td>75<\/td><\/tr><tr><td>4.00<\/td><td>0.6<\/td><td>15<\/td><td>85<\/td><\/tr><tr><td>4.10<\/td><td>0.6<\/td><td>0<\/td><td>100<\/td><\/tr><tr><td>5.00<\/td><td>0.6<\/td><td>0<\/td><td>100<\/td><\/tr><tr><td>5.01<\/td><td>0.6<\/td><td>25<\/td><td>75<\/td><\/tr><tr><td>7.00<\/td><td>0.6<\/td><td>25<\/td><td>75<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>HPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>9319A1E<\/li><\/ul><\/div><div class=\"chromatogram-related-searches\"><h4>Related Searches<\/h4><ul><li>epimer<\/li><li>vitamin D<\/li><li>vitamin D epimer<\/li><li>vitamin D metabolite<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_cf0644.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<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-c4b2d9ca708b48e6a2b91835ab8450b8\" style=\"color:#68bd45\">Raptor reproducibility lets you develop assays with confidence<\/h3>\n\n\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_cf0646.png\" alt=\"Lot Comparison of 25-Hydroxyvitamin D3 and 3-Epi-25-Hydroxyvitamin D3 on Raptor\u2122 FluoroPhenyl by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_CF0646<\/p><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_cf0646.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<h2 class=\"wp-block-heading\">Get the Power of HILIC and RP Modes in One LC Column<\/h2>\n\n\n\n<p>HILIC chromatography is becoming the go-to solution for compounds that are difficult to retain on a C18. The Raptor FluoroPhenyl column gives chromatographers the flexibility to evaluate compound retention in both reversed-phase and HILIC modes. The analysis of 4-methylimidazole (4-MEI), which is a byproduct of caramel coloring in foods and beverages, can be problematic by reversed-phase chromatography due to very limited retention. However, 4-MEI is well retained on a Raptor FluoroPhenyl column and can easily be analyzed using HILIC mode and simple LC and LC-MS\/MS compatible mobile phases.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 6:<\/strong>\u00a0Sometimes, adequate retention cannot be obtained with a C18. The Raptor FluoroPhenyl column performs dependably in either HILIC or RP mode, so you can use the mode that is best for your analytes.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-feb934af8016ebac8e4af84dc2a4d372\" style=\"color:#68bd45\">Raptor FluoroPhenyl columns give you the flexibility to work in both reversed-phase and HILIC modes.<\/h3>\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\/lc_ff0559.png\" alt=\"Analysis of 4-Methylimidazole on Raptor FluoroPhenyl by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_FF0559<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 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\">Precursor Ion<\/th><th style=\"text-align: center;width: 75px\">Product Ion<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 4-Methylimidazole (4-MEI)\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/822-36-6\/4-Methylimidazole\" target=\"_blank\" rel=\"noopener\">4-Methylimidazole (4-MEI)<\/a><\/td><td class=\"oth\">1.19<\/td><td class=\"oth\">83<\/td><td class=\"oth\">56<\/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 FluoroPhenyl  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/9319A52?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_FF0559\" rel=\"noopener\">cat.# 9319A52<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>50 mm x 2.1 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>2.7 \u00b5m<\/td><\/tr><tr><td><\/td><tr><th class=\"sub conditions_header\" scope=\"row\">Temp.:<\/th><td>35 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Acetonitrile<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>100 ng\/mL<\/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>0.1% Formic acid in water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>0.1% Formic acid in acetonitrile <\/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>0.6<\/td><td>5<\/td><td>95<\/td><\/tr><tr><td>2.00<\/td><td>0.6<\/td><td>70<\/td><td>30<\/td><\/tr><tr><td>2.01<\/td><td>0.6<\/td><td>5<\/td><td>95<\/td><\/tr><tr><td>3.50<\/td><td>0.6<\/td><td>5<\/td><td>95<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>UHPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ff0559.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 regular-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ff0560.png\" alt=\"4-Methylimidazole Lot to Lot Comparison on Raptor\u2122 FluoroPhenyl\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_FF0560<\/p><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ff0560.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<h2 class=\"wp-block-heading\">Fast, Accurate Analysis of Basic Compounds<\/h2>\n\n\n\n<p>Taxane drugs\u2014such as paclitaxel, docetaxel, and their precursor, baccatin III\u2014are early chemotherapy treatment options. Accurate analysis is critical because these drugs are used for many types of metastatic cancers. As shown here, the selectivity of the Raptor FluoroPhenyl column provides excellent retention and resolution of these structurally similar compounds. Reliable results for these basic compounds can be obtained in fast analysis times using LC-MS\/MS friendly solvents.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 7:<\/strong>\u00a0Raptor FluoroPhenyl columns allow taxane drugs and other basic compounds to be separated quickly and effectively.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-95ce9ec6c83b63de242350b89d483ca6\" style=\"color:#68bd45\">Raptor FluoroPhenyl columns have the retention needed for fast, accurate analysis of basic compounds.<\/h3>\n\n\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<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"550\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-baccatiniii.png\" alt=\"\" class=\"wp-image-12274\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-baccatiniii.png 740w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-baccatiniii-300x223.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"550\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-docetaxel.png\" alt=\"\" class=\"wp-image-12280\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-docetaxel.png 740w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-docetaxel-300x223.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"550\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-paclitaxel.png\" alt=\"\" class=\"wp-image-12286\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-paclitaxel.png 740w, https:\/\/discover.restek.com\/wp-content\/uploads\/article-structure-gnbr2368b-paclitaxel-300x223.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\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_ba0351.png\" alt=\"Analysis of Taxanes on Raptor FluoroPhenyl by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_BA0351<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 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\">Precursor Ion<\/th><th style=\"text-align: center;width: 75px\">Product Ion 1<\/th><th style=\"text-align: center;width: 75px\">Product Ion 2<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\">Baccatin III<\/td><td class=\"oth\">0.97<\/td><td class=\"oth\">587.0<\/td><td class=\"oth\">405.1<\/td><td class=\"oth\">105.0<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\">Docetaxel<\/td><td class=\"oth\">1.25<\/td><td class=\"oth\">808.1<\/td><td class=\"oth\">527.3<\/td><td class=\"oth\">226.1<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Paclitaxel\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/33069-62-4\/Paclitaxel\" target=\"_blank\" rel=\"noopener\">Paclitaxel<\/a><\/td><td class=\"oth\">1.33<\/td><td class=\"oth\">854.1<\/td><td class=\"oth\">569.3<\/td><td class=\"oth\">286.2<\/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 FluoroPhenyl  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/931955E?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_BA0351\" rel=\"noopener\">cat.# 931955E<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>50 mm x 3 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>5 \u00b5m<\/td><\/tr><tr><td><\/td><tr><th class=\"sub conditions_header\" scope=\"row\">Temp.:<\/th><td>35 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Water<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>100 ng\/mL<\/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>0.1% Formic acid in water <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>0.1% Formic acid in acetonitrile <\/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>75<\/td><td>25<\/td><\/tr><tr><td>2.00<\/td><td>0.8<\/td><td>5<\/td><td>95<\/td><\/tr><tr><td>2.01<\/td><td>0.8<\/td><td>75<\/td><td>25<\/td><\/tr><tr><td>3.50<\/td><td>0.8<\/td><td>75<\/td><td>25<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>UHPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_ba0351.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<h2 class=\"wp-block-heading\">Exceptional Selectivity for Clinical Analyses<\/h2>\n\n\n\n<p>The analysis of normetanephrine and metanephrine provides another example of the power of Raptor FluoroPhenyl columns for analyzing basic compounds. Accurately determining these metabolites of epinephrine\/norepinephrine in plasma or urine is one of the best diagnostic tests for neuroendocrine tumors (pheochromocytomas). Normetanephrine and metanephrine are difficult to retain by typical C18 reversed-phase chromatography; however, the Raptor FluoroPhenyl column provides a simple, fast chromatographic solution to this challenging assay. The Raptor FluoroPhenyl column\u2019s unique combination of aromatic retention and cation exchange mechanisms are not provided by a C18 column and result in reliable, high-quality separations.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 8:<\/strong>\u00a0Rapid analysis of metanephrine and normetanephrine on a Raptor FluoroPhenyl column.<\/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_cf0642.png\" alt=\"Metanephrines on Raptor FluoroPhenyl by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_CF0642<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 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\">Precursor Ion<\/th><th style=\"text-align: center;width: 75px\">Product Ion 1<\/th><th style=\"text-align: center;width: 75px\">Product Ion 2<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\">Normetanephrine<\/td><td class=\"oth\">1.15<\/td><td class=\"oth\">166.1<\/td><td class=\"oth\">121.1<\/td><td class=\"oth\">134.0<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Metanephrine\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/5001-33-2\/Metanephrine\" target=\"_blank\" rel=\"noopener\">Metanephrine<\/a><\/td><td class=\"oth\">1.52<\/td><td class=\"oth\">180.1<\/td><td class=\"oth\">165.1<\/td><td class=\"oth\">148.3<\/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 FluoroPhenyl  (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/9319A12?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=LC_CF0642\" rel=\"noopener\">cat.# 9319A12<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Dimensions:<\/th><td>100 mm x 2.1 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Particle Size:<\/th><td>2.7 \u00b5m<\/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><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>  20 ng\/mL in water<\/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 + 0.2% formic acid <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">B:<\/th><td>Methanol <\/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>0.4<\/td><td>98<\/td><td>2<\/td><\/tr><tr><td>2.00<\/td><td>0.4<\/td><td>60<\/td><td>40<\/td><\/tr><tr><td>2.01<\/td><td>0.4<\/td><td>98<\/td><td>2<\/td><\/tr><tr><td>6.00<\/td><td>0.4<\/td><td>98<\/td><td>2<\/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>MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ion Mode:<\/th><td>ESI+ <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Mode:<\/th><td>MRM <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>UHPLC<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_cf0642.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 regular-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/lc_cf0643.png\" alt=\"Lot to Lot Comparison of Metanephrines on the Raptor\u2122 FluoroPhenyl by LC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> LC_CF0643<\/p><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/lc_cf0643.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:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Experience <em>Selectivity Accelerated<\/em>. Order the Raptor FluoroPhenyl LC Column today.<\/h2>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Related Products<\/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:\/\/de.restek.com\/p\/931955E\">                                Catalog No. 931955E                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Raptor FluoroPhenyl, 5 \u00b5m, 50&#215;3.0 mm HPLC-S\u00e4ule<\/div>\n                        <\/div>\n                        <div class=\"cpb-col 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href=\"https:\/\/de.restek.com\/p\/25809\">Produkt anzeigen<\/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","protected":false},"excerpt":{"rendered":"<p>Restek has now extended the speed and reliability of Raptor column technology into the HILIC realm with the addition of Raptor FluoroPhenyl columns. Restek&#8217;s Raptor FluoroPhenyl phase offers chromatographers the ability to run in reversed-phase or HILIC mode for a variety of compounds. 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