{"id":43892,"date":"2022-10-04T00:00:00","date_gmt":"2022-10-04T00:00:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/improve-your-linear-alpha-olefins-lao-impurity-analysis-with-resteks-new-rxi-lao-gc-columns\/"},"modified":"2026-01-28T15:54:41","modified_gmt":"2026-01-28T15:54:41","slug":"improve-your-linear-alpha-olefins-lao-impurity-analysis-with-resteks-new-rxi-lao-gc-columns","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/zh-hans\/articles\/pcss3860\/improve-your-linear-alpha-olefins-lao-impurity-analysis-with-resteks-new-rxi-lao-gc-columns","title":{"rendered":"Improve Your Linear Alpha Olefins (LAO) Impurity Analysis with Restek\u2019s New Rxi-LAO GC Columns"},"content":{"rendered":"\n<p>Specifically applicated for linear alpha olefins (LAO) impurity analysis, Restek\u2019s new Rxi-LAO GC columns provide accurate analysis of LAO compounds including 1-butene, 1-hexene, and 1-octene. Combining a stationary phase with a unique selectivity and an optimal, one-column method, these new columns help labs improve their LAO analysis by increasing system uptime and sample throughput.<\/p>\n\n\n\n<p>Rxi-LAO columns are defined by four key features:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unique selectivity enables high resolution of impurities from peaks of interest for excellent data quality.<\/li>\n\n\n\n<li>One-column method reduces instrument setup and analysis time, resulting in fast, accurate, and complete analysis.<\/li>\n\n\n\n<li>Application-specific column dimensions increase sample throughput.<\/li>\n\n\n\n<li>Pro <em>EZ<\/em>GC chromatogram modeler libraries simplify analysis optimization.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">A GC Column Applicated for Linear Alpha Olefins Analysis<\/h2>\n\n\n\n<p>Restek\u2019s Rxi-LAO columns are the first GC columns specifically applicated for the impurity analysis of linear alpha olefins. Our unique selectivity achieves high resolution of impurities from peaks of interest, ensuring these new columns provide labs with the separation power needed for LAO impurity analysis (Figures 1 and 2).<\/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>\u00a0The unique selectivity of Rxi-LAO columns provides high resolution of impurities from peaks of interest in the analysis of 1-Hexene.<\/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_pc1378.png\" alt=\"1-Hexene on Rxi-LAO (60 m x 0.25 mm x 1.4 \u00b5m)\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_PC1378<\/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><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 3-Methyl-1-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/760-20-3\/3-Methyl-1-pentene\" target=\"_blank\" rel=\"noopener\">3-Methyl-1-pentene<\/a><\/td><td class=\"oth\">14.06<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 3-Methylpentane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/96-14-0\/3-Methylpentane\" target=\"_blank\" rel=\"noopener\">3-Methylpentane<\/a><\/td><td class=\"oth\">16.31<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 1-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/592-41-6\/1-Hexene\" target=\"_blank\" rel=\"noopener\">1-Hexene<\/a><\/td><td class=\"oth\">18.04<\/td><\/tr>\n<tr><td class=\"num\">4.<\/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><td class=\"oth\">18.39<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Ethyl-1-butene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/760-21-4\/2-Ethyl-1-butene\" target=\"_blank\" rel=\"noopener\">2-Ethyl-1-butene<\/a><\/td><td class=\"oth\">19.08<\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-3-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7642-09-3\/cis-3-Hexene\" target=\"_blank\" rel=\"noopener\">cis-3-Hexene<\/a><\/td><td class=\"oth\">19.61<\/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><th style=\"text-align: center;width: 50px\">t<sub>R<\/sub> (min)<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\">trans-2-Hexene<\/td><td class=\"oth\">19.61<\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-3-Methyl-2-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/922-62-3\/cis-3-Methyl-2-pentene\" target=\"_blank\" rel=\"noopener\">cis-3-Methyl-2-pentene<\/a><\/td><td class=\"oth\">20.41<\/td><\/tr>\n<tr><td class=\"num\">9.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-2-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7688-21-3\/cis-2-Hexene\" target=\"_blank\" rel=\"noopener\">cis-2-Hexene<\/a><\/td><td class=\"oth\">20.81<\/td><\/tr>\n<tr><td class=\"num\">10.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for trans-3-Methyl-2-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/616-12-6\/trans-3-Methyl-2-pentene\" target=\"_blank\" rel=\"noopener\">trans-3-Methyl-2-pentene<\/a><\/td><td class=\"oth\">21.19<\/td><\/tr>\n<tr><td class=\"num\">11.<\/td><td class=\"cmpd\">Methyl-cyclopentene<\/td><td class=\"oth\">22.87<\/td><\/tr>\n<tr><td class=\"num\">12.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Cyclohexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/110-83-8\/Cyclohexene\" target=\"_blank\" rel=\"noopener\">Cyclohexene<\/a><\/td><td class=\"oth\">23.24<\/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>Rxi-LAO, 60 m, 0.25 mm ID, 1.4 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/13876?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1378\" rel=\"noopener\">cat.# 13876<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>1-Hexene<\/td><\/tr><tr><td><\/td><\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>  Neat solvent<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 100:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 4.0 mm ID low pressure drop Precision inlet liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23309?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1378\" rel=\"noopener\">cat.# 23309<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Split Vent Flow Rate:<\/th><td>125 mL\/min<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>35 &#176;C (hold 20 min) to 160 &#176;C at 30 &#176;C\/min (hold 20 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\">Linear Velocity:<\/th><td>23 cm\/sec @ 35 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>FID @ 300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Flow Rate:<\/th><td>45 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Type:<\/th><td>N<sub>2<\/sub> <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Hydrogen flow:<\/th><td>40 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Air flow:<\/th><td>450 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Data Rate:<\/th><td>20 Hz<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The sample was pipetted into a 2 mL vial (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/21142?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1378\" rel=\"noopener\">cat.# 21142<\/a>) and capped with a short screw cap (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/24498?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1378\" rel=\"noopener\">cat.# 24498<\/a>).  <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Notes<\/th><td>\u2022 Compounds were tentatively identified using a mass spectrometer and method translation. <br \/>\u2022 A 208V instrument was used.<br \/>\u2022 Benzene is not present in the sample, but if it were, it would elute at 23.73 minutes under these conditions.<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_pc1378.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 2:<\/strong>\u00a0Rxi-LAO columns reliably separate 1-Octene from impurities.<\/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_pc1381.png\" alt=\"1-Octene on Rxi-LAO (60 m x 0.25 mm x 1.4 \u00b5m)\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_PC1381<\/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>Rxi-LAO, 60 m, 0.25 mm ID, 1.4 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/13876?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1381\" rel=\"noopener\">cat.# 13876<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>1-Octene<\/td><\/tr><tr><td><\/td><\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>  Neat solvent<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 100:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 4.0 mm ID low pressure drop Precision liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23309?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1381\" rel=\"noopener\">cat.# 23309<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Split Vent Flow Rate:<\/th><td>125 mL\/min<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>35 &#176;C (hold 20 min) to 160 &#176;C at 30 &#176;C\/min (hold 20 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\">Linear Velocity:<\/th><td>23 cm\/sec @ 35 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>FID @ 300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Flow Rate:<\/th><td>45 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Type:<\/th><td>N<sub>2<\/sub> <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Hydrogen flow:<\/th><td>40 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Air flow:<\/th><td>450 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Data Rate:<\/th><td>20 Hz<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The sample was pipetted into a 2 mL vial (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/21142?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1381\" rel=\"noopener\">cat.# 21142<\/a>) and capped with a short screw cap (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/24498?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1381\" rel=\"noopener\">cat.# 24498<\/a>).  <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Notes<\/th><td>Peaks are tentatively identified.<br \/><\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>13876<\/li><li>23309<\/li><li>21142<\/li><li>24498<\/li><\/ul><\/div><div class=\"chromatogram-related-searches\"><h4>Related Searches<\/h4><ul><li>HDPE<\/li><li>LLDPE<\/li><li>chemical purity<\/li><li>comonomer for polyethylene production<\/li><li>dye synthesis<\/li><li>flavor synthesis<\/li><li>high density polyethylene<\/li><li>high purity analysis<\/li><li>impurity analysis<\/li><li>linear aldehyde heptanal<\/li><li>linear alpha olefin<\/li><li>linear low density polyethylene<\/li><li>perfume synthesis<\/li><li>plastic manufacturing<\/li><li>polymerization starting material<\/li><li>resin synthesis<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_pc1381.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\">An LAO Workhorse: Increased Uptime and Increased Sample Throughput with a Single Column<\/h2>\n\n\n\n<p>As worldwide demand for polyethylene increases, so does the pressure on labs performing LAO impurity analysis. These labs need their GC columns to do more\u2014accuracy isn\u2019t enough: their columns need to be dependable and fast.<\/p>\n\n\n\n<p>Rxi-LAO columns achieve high selectivity for liner alpha olefins impurities while requiring only a one-column method, resulting in substantial benefits compared to two-column or even current one-column methods. To help meet the needs of different labs, Rxi-LAO columns are available in two dimensions (Table I).<\/p>\n\n\n\n<p>For labs using a two-column\/two-GC method, we recommend our Rxi-LAO 60 m, 0.25 mm ID, 1.4 \u00b5m column (cat.# 13876). Compared to a two-column method, this single-column option halves the number of columns needed, resulting in reduced setup time, column costs, and analysis time while maintaining data quality (Figures 1 and 2).<\/p>\n\n\n\n<p>For labs using a single-column method, we recommend our shorter, narrow-bore Rxi-LAO 40 m, 0.18 mm ID, 1.0 \u00b5m column (cat.# 40815). The smaller dimensions of this column enables fast analysis times while maintaining the separation power needed for LAO impurity analysis (Figures 3 and 4, Table II).<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Table I:<\/strong> Switching to a one-column method using Rxi-LAO columns can offer labs substantial benefits over current methods.<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Current Method<\/strong><\/td><td><strong>Rxi-LAO Column Dimension for One-Column Method<\/strong><\/td><td><strong>Rxi-LAO Column Advantage<\/strong><\/td><td><strong>Benefits vs. Current Method<\/strong><\/td><\/tr><tr><td>2 GC\/2 Column<\/td><td>60 m, 0.25 mm ID, 1.4 \u00b5m (<a href=\"https:\/\/www.restek.com\/p\/13876\" target=\"_blank\" rel=\"noopener\">cat.# 13876<\/a>)<\/td><td>One-column method reduces setup time. Optimal stationary phase selectivity reduces analysis time and yields good resolution of impurities.<\/td><td>Increased instrument uptime. Increased sample throughput. Accurate, complete results.<\/td><\/tr><tr><td>1 GC\/1 Column<\/td><td>40 m, 0.18 mm ID, 1.0 \u00b5m (<a href=\"https:\/\/www.restek.com\/p\/40815\" target=\"_blank\" rel=\"noopener\">cat.# 40815<\/a>)<\/td><td>Shorter, small ID column produces faster analysis times while maintaining impurity resolutions.<\/td><td>Increased sample throughput. Good data quality.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 3:<\/strong>\u00a0The optimal column dimensions of our 40 m, 0.18 mm ID, 1.0 \u00b5m Rxi-LAO column (cat.# 40815) allows even faster run times from a single column analysis while maintaining resolution of impurities from 1-Hexene.<\/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_pc1380.png\" alt=\"1-Hexene on Rxi-LAO (40 m x 0.18 mm x 1.0 \u00b5m)\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_PC1380<\/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 3-Methyl-1-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/760-20-3\/3-Methyl-1-pentene\" target=\"_blank\" rel=\"noopener\">3-Methyl-1-pentene<\/a><\/td><td class=\"oth\">5.25<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 3-Methylpentane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/96-14-0\/3-Methylpentane\" target=\"_blank\" rel=\"noopener\">3-Methylpentane<\/a><\/td><td class=\"oth\">6.10<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 1-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/592-41-6\/1-Hexene\" target=\"_blank\" rel=\"noopener\">1-Hexene<\/a><\/td><td class=\"oth\">6.87<\/td><\/tr>\n<tr><td class=\"num\">4.<\/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><td class=\"oth\">6.94<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Ethyl-1-butene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/760-21-4\/2-Ethyl-1-butene\" target=\"_blank\" rel=\"noopener\">2-Ethyl-1-butene<\/a><\/td><td class=\"oth\">7.16<\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-3-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7642-09-3\/cis-3-Hexene\" target=\"_blank\" rel=\"noopener\">cis-3-Hexene<\/a><\/td><td class=\"oth\">7.34<\/td><\/tr>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\">trans-2-Hexene<\/td><td class=\"oth\">7.35<\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-3-Methyl-2-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/922-62-3\/cis-3-Methyl-2-pentene\" target=\"_blank\" rel=\"noopener\">cis-3-Methyl-2-pentene<\/a><\/td><td class=\"oth\">7.66<\/td><\/tr>\n<tr><td class=\"num\">9.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-2-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7688-21-3\/cis-2-Hexene\" target=\"_blank\" rel=\"noopener\">cis-2-Hexene<\/a><\/td><td class=\"oth\">7.91<\/td><\/tr>\n<tr><td class=\"num\">10.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for trans-3-Methyl-2-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/616-12-6\/trans-3-Methyl-2-pentene\" target=\"_blank\" rel=\"noopener\">trans-3-Methyl-2-pentene<\/a><\/td><td class=\"oth\">8.23<\/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>Rxi-LAO, 40 m, 0.18 mm ID, 1.0 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/40815?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1380\" rel=\"noopener\">cat.# 40815<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>1-Hexene<\/td><\/tr><tr><td><\/td><\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>  Neat solvent<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 100:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 4.0 mm ID low pressure drop Precision inlet liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23309?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1380\" rel=\"noopener\">cat.# 23309<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Split Vent Flow Rate:<\/th><td>178 mL\/min<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>35 &#176;C (hold 11.85 min) to 160 &#176;C at 50 &#176;C\/min (hold 12 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\">Linear Velocity:<\/th><td>39.19 cm\/sec @ 35 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>FID @ 300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Flow Rate:<\/th><td>45 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Type:<\/th><td>N<sub>2<\/sub> <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Hydrogen flow:<\/th><td>40 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Air flow:<\/th><td>400 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Data Rate:<\/th><td>20 Hz<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The sample was pipetted into a 2 mL vial (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/21142?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1380\" rel=\"noopener\">cat.# 21142<\/a>) and capped with a short screw cap (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/24498?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1380\" rel=\"noopener\">cat.# 24498<\/a>).  <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Notes<\/th><td>\u2022 Compounds were tentatively identified using a mass spectrometer and method translation. <br \/>\u2022 A 208V instrument was used.<br \/>\u2022 Benzene is not present in the sample, but if it were, it would elute at 12.36 minutes under these conditions.<br \/><\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_pc1380.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 4:<\/strong>\u00a0The narrow-bore Rxi-LAO column (cat.# 40815) accurately resolves 1-Octene within a fast, 18-minute run time.<\/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_pc1382.png\" alt=\"1-Octene on Rxi-LAO (40 m x 0.18 mm x 1.0 \u00b5m)\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_PC1382<\/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>Rxi-LAO, 40 m, 0.18 mm ID, 1.0 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/40815?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1382\" rel=\"noopener\">cat.# 40815<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>1-Octene<\/td><\/tr><tr><td><\/td><\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>  Neat solvent<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 100:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 4.0 mm ID low pressure drop Precision inlet liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23309?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1382\" rel=\"noopener\">cat.# 23309<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Split Vent Flow Rate:<\/th><td>178 mL\/min<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>35 &#176;C (hold 11.85 min) to 160 &#176;C at 50 &#176;C\/min (hold 12 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\">Linear Velocity:<\/th><td>39.19 cm\/sec @ 35 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>FID @ 300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Flow Rate:<\/th><td>45 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Type:<\/th><td>N<sub>2<\/sub> <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Hydrogen flow:<\/th><td>40 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Air flow:<\/th><td>400 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Data Rate:<\/th><td>20 Hz<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The sample was pipetted into a 2 mL vial (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/21142?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1382\" rel=\"noopener\">cat.# 21142<\/a>) and capped with a short screw cap (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/24498?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1382\" rel=\"noopener\">cat.# 24498<\/a>).<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Notes<\/th><td>\u2022 Peaks are tentatively identified.<br \/>\u2022 A 208V instrument was used.<br \/><\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-related-skus\"><h4>Related SKUs<\/h4><ul><li>40815<\/li><li>23309<\/li><li>21142<\/li><li>24498<\/li><\/ul><\/div><div class=\"chromatogram-related-searches\"><h4>Related Searches<\/h4><ul><li>HDPE<\/li><li>LLDPE<\/li><li>chemical purity<\/li><li>comonomer for polyethylene production<\/li><li>dye synthesis<\/li><li>flavor synthesis<\/li><li>high density polyethylene<\/li><li>high purity analysis<\/li><li>impurity analysis<\/li><li>linear aldehyde heptanal<\/li><li>linear alpha olefin<\/li><li>linear low density polyethylene<\/li><li>perfume synthesis<\/li><li>plastic manufacturing<\/li><li>polymerization starting material<\/li><li>resin synthesis<\/li><\/ul><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_pc1382.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<p><\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Table II:<\/strong> The faster analysis times produced by the 40 m Rxi-LAO column (<a href=\"https:\/\/www.restek.com\/p\/40815\" target=\"_blank\" rel=\"noopener\">cat.# 40815<\/a>) make it ideal for labs seeking a high throughput solution.<\/h5>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td rowspan=\"2\"><strong>Rxi-LAO Column Dimension<\/strong><\/td><td colspan=\"2\"><strong>Run time (min)<\/strong><\/td><\/tr><tr><td><strong>1-Hexene Analysis<\/strong><\/td><td><strong>1-Octene Analysis<\/strong><\/td><\/tr><tr><td>60 m, 0.25 mm ID, 1.4 \u00b5m (<a href=\"https:\/\/www.restek.com\/p\/13876\" target=\"_blank\" rel=\"noopener\">cat.# 13876<\/a>)<\/td><td>24<\/td><td>32<\/td><\/tr><tr><td>40 m, 0.18 mm ID, 1.0 \u00b5m (<a href=\"https:\/\/www.restek.com\/p\/40815\" target=\"_blank\" rel=\"noopener\">cat.# 40815<\/a>)<\/td><td><strong>9<\/strong><\/td><td><strong>18<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Renowned Rxi Column Technology as Standard<\/h2>\n\n\n\n<p>As part of the Rxi GC column family, Rxi-LAO columns benefit from the industry-leading GC column technology that is standard across our entire Rxi column line.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">High Reproducibility<\/h3>\n\n\n\n<p>Our Rxi-LAO columns feature unmatched manufacturing precision and stringent quality control to deliver high column-to-column reproducibility. This ensures your Rxi-LAO column performs to the same high standard with every analysis, even after changing the column (Figure 5).<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 5:<\/strong>\u00a0Rxi-LAO columns are engineered and QC tested to ensure column-to-column and lot-to-lot reproducibility.<\/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_pc1379.png\" alt=\"Lot-to-Lot Comparison: 1-Hexene on Rxi-LAO\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_PC1379<\/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 1-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/592-41-6\/1-Hexene\" target=\"_blank\" rel=\"noopener\">1-Hexene<\/a><\/td><td class=\"oth\">18.04<\/td><\/tr>\n<tr><td class=\"num\">2.<\/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><td class=\"oth\">18.39<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for 2-Ethyl-1-butene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/760-21-4\/2-Ethyl-1-butene\" target=\"_blank\" rel=\"noopener\">2-Ethyl-1-butene<\/a><\/td><td class=\"oth\">19.08<\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-3-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7642-09-3\/cis-3-Hexene\" target=\"_blank\" rel=\"noopener\">cis-3-Hexene<\/a><\/td><td class=\"oth\">19.60<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\">trans-2-Hexene<\/td><td class=\"oth\">19.61<\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-3-Methyl-2-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/922-62-3\/cis-3-Methyl-2-pentene\" target=\"_blank\" rel=\"noopener\">cis-3-Methyl-2-pentene<\/a><\/td><td class=\"oth\">20.41<\/td><\/tr>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for cis-2-Hexene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7688-21-3\/cis-2-Hexene\" target=\"_blank\" rel=\"noopener\">cis-2-Hexene<\/a><\/td><td class=\"oth\">20.81<\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for trans-3-Methyl-2-pentene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/616-12-6\/trans-3-Methyl-2-pentene\" target=\"_blank\" rel=\"noopener\">trans-3-Methyl-2-pentene<\/a><\/td><td class=\"oth\">21.19<\/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>Rxi-LAO, 60 m, 0.25 mm ID, 1.4 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/13876?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1379\" rel=\"noopener\">cat.# 13876<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>1-Hexene<\/td><\/tr><tr><td><\/td><\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>  Neat solvent<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 100:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 4.0 mm ID low pressure drop Precision inlet liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23309?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1379\" rel=\"noopener\">cat.# 23309<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>250 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Split Vent Flow Rate:<\/th><td>125 mL\/min<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>35 &#176;C (hold 20 min) to 160 &#176;C at 30 &#176;C\/min (hold 20 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\">Linear Velocity:<\/th><td>23 cm\/sec @ 35 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>FID @ 300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Flow Rate:<\/th><td>45 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Make-up Gas Type:<\/th><td>N<sub>2<\/sub> <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Hydrogen flow:<\/th><td>40 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Air flow:<\/th><td>450 mL\/min<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Data Rate:<\/th><td>20 Hz<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Agilent 7890B GC<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>The sample was pipetted into a 2 mL vial (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/21142?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1379\" rel=\"noopener\">cat.# 21142<\/a>) and capped with a short screw cap (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/24498?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC1379\" rel=\"noopener\">cat.# 24498<\/a>).  <\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_pc1379.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<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Low Bleed<\/h3>\n\n\n\n<p>The high stability of our Rxi columns means they generate less bleed and reduce background to further improve signal-to-noise ratios, enhance sensitivity, and lower detection limits. Together, these two advanced technologies help ensure your LAO data is highly accurate and that you get the right results fast.<\/p>\n\n\n\n<p>Learn more about the technology that goes into our Rxi GC columns at <a href=\"https:\/\/www.restek.com\/rxi\" data-type=\"link\" data-id=\"https:\/\/www.restek.com\/rxi\" target=\"_blank\" rel=\"noopener\">www.restek.com\/rxi<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Simplify Your Analysis Optimization with Pro <em>EZ<\/em>GC Software<\/h2>\n\n\n\n<p>Rxi-LAO columns are fully supported by our Pro <em>EZ<\/em>GC chromatogram modeler, allowing labs to simplify their analysis optimization. This free, easy-to-use software helps you perform GC method optimization and method development in minutes\u2014without needing to use an instrument.<\/p>\n\n\n\n<p>A powerful feature of Pro <em>EZ<\/em>GC software is its ability to model the performance of different column dimensions. If your LAO impurity application currently uses a single-column method, and you would like to see how changing to the shorter, 40 m Rxi-LAO column can speed up your analysis, Pro <em>EZ<\/em>GC software can be used to generate simulated results with exceptional accuracy.<\/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>\u00a0Rxi-LAO GC columns are fully supported by Restek\u2019s Pro EZGC chromatogram modeler, helping labs quickly and easily optimize their LAO analysis.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n<style>.kb-image43892_511912-17 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image43892_511912-17\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"421\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-PCSS3860-01-1024x421.jpg\" alt=\"\" class=\"kb-img wp-image-23740\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-PCSS3860-01-1024x421.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-PCSS3860-01-300x123.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-PCSS3860-01-768x316.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-PCSS3860-01-1536x631.jpg 1536w, https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-PCSS3860-01.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n<\/div><\/div><\/div>\n\n\n<p><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Products Mentioned<\/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:\/\/www.restek.com\/p\/13876\">                                Catalog No. 13876                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Rxi-LAO GC Capillary Column, 60 m x 0.25 mm ID x 1.4 \u00b5m<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/13876\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/40815\">                                Catalog No. 40815                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Rxi-LAO GC Capillary Column, 40 m x 0.18 mm ID x 1.0 \u00b5m<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/40815\">\u67e5\u770b\u4ea7\u54c1<\/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\u2019s Rxi-LAO GC columns combine a stationary phase with a unique selectivity and an optimal, one-column method, helping labs improve their LAO purity analysis by increasing system uptime and sample throughput.<\/p>\n","protected":false},"author":11,"featured_media":7597,"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":[7],"tags":[],"industries-application":[2152],"post-badge":[],"resource-type":[],"product-library":[2371,2372,2380,2384,2386,2374,2375,2405],"resource-technique":[2294],"ppma_author":[414],"class_list":["post-43892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","industries-application-chemical-production","product-library-air-gas-sampling-products","product-library-gas-chromatography-products","product-library-gas-standards-accessories","product-library-gc-columns","product-library-inlet-supplies","product-library-reference-standard-products","product-library-sample-preparation-products","product-library-vials-accessories","resource-technique-gas-chromatography-gc"],"acf":[],"taxonomy_info":{"category":[{"value":7,"label":"Articles"}],"industries-application":[{"value":2152,"label":"Chemical 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