{"id":43880,"date":"2020-10-28T00:00:00","date_gmt":"2020-10-28T00:00:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/separate-argon-from-oxygen-above-ambient-temperatures\/"},"modified":"2026-01-03T15:41:08","modified_gmt":"2026-01-03T15:41:08","slug":"separate-argon-from-oxygen-above-ambient-temperatures","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/it\/articles\/pcar3247\/separate-argon-from-oxygen-above-ambient-temperatures","title":{"rendered":"Separate Argon from Oxygen Above Ambient Temperatures"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>Fast, efficient separations at above ambient temperatures.<\/li>\n\n\n\n<li>High permeability and narrow column diameter mean sharper peaks.<\/li>\n\n\n\n<li>100% bonding process eliminates the need for particle traps.<\/li>\n<\/ul>\n\n\n\n<p>Porous layer open tubular columns\u2014PLOT columns\u2014offer significant advantages over packed gas-solid chromatography (GSC) columns. The open tubular design gives PLOT columns greater permeability, and their narrow diameter ensures sharper peaks. The open construction affords a smaller pressure drop per unit length, so longer columns can be used. This means much higher column efficiency and, therefore, superior resolution. In brief, PLOT columns provide faster and more sensitive analyses than packed GSC columns.<\/p>\n\n\n\n<p>Restek PLOT columns are especially effective for separating mixtures of gaseous analytes.&nbsp;Rt-Msieve 5A PLOT&nbsp;columns contain molecular sieve 5A particles that are bonded to prevent particle dislocation, thus protecting valves and detection systems from damage. They are designed for fast, efficient separation of argon and oxygen, hydrogen and helium, and other permanent gases, including permanent gases admixed in refinery or natural gas. Finely controlled pore size allows selective adsorption of specific target compounds, ensuring that difficult separations can be made without subambient temperatures.<\/p>\n\n\n\n<p>Figure 1 shows a 30 m x 0.53 mm ID Rt-Msieve 5A PLOT column can separate oxygen from argon to baseline, at above ambient temperature, in approximately 4 min. Also, the permanent gases are resolved from methane in the same analysis. Carbon dioxide does not elute from a molecular sieve 5A column, but can be chromatographed on an&nbsp;Rt-Q-BOND&nbsp;porous polymer column.<\/p>\n\n\n\n<p>If your analyses call for difficult separations of gaseous analytes, and neither conventional packed GC columns nor WCOT capillary columns are providing the separations you want, or if your analyses depend on costly or time-consuming conditions, a Restek PLOT column may be your solution.<\/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>\u00a0Excellent resolution at above ambient temperatures on an Rt-Msieve 5A PLOT 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\/gc_pc00898.png\" alt=\"Permanent Gases Rt-Msieve 5A\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_PC00898<\/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\">Conc.<br \/>(\u00b5g\/mL)<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Hydrogen\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/1333-74-0\/Hydrogen\" target=\"_blank\" rel=\"noopener\">Hydrogen<\/a><\/td><td class=\"oth\">40<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Argon\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7440-37-1\/Argon\" target=\"_blank\" rel=\"noopener\">Argon<\/a><\/td><td class=\"oth\">30<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Oxygen\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7782-44-7\/Oxygen\" target=\"_blank\" rel=\"noopener\">Oxygen<\/a><\/td><td class=\"oth\">50<\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Nitrogen\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7727-37-9\/Nitrogen\" target=\"_blank\" rel=\"noopener\">Nitrogen<\/a><\/td><td class=\"oth\">50<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Methane\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/74-82-8\/Methane\" target=\"_blank\" rel=\"noopener\">Methane<\/a><\/td><td class=\"oth\">40<\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Carbon monoxide\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/630-08-0\/Carbon monoxide\" target=\"_blank\" rel=\"noopener\">Carbon monoxide<\/a><\/td><td class=\"oth\">50<\/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>Rt-Msieve 5A, 30 m, 0.53 mm ID, 50 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/19723?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_PC00898\" rel=\"noopener\">cat.# 19723<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>Permanent gases<\/td><\/tr>\n<tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td>sample valve<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Sample Loop Vol.:<\/th><td>5 \u00b5L<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Valve Name:<\/th><td>6-port Valco valve <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>200 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Valve Temp.:<\/th><td>Ambient \u00b0C<\/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>27 &#176;C (hold 5 min) to 100 &#176;C at 10 &#176;C\/min (hold 5 min)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Carrier Gas<\/th><td>He, constant flow<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Flow Rate:<\/th><td>5.0 mL\/min<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>Valco helium ionization detector @ 150 \u00b0C<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_pc00898.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<h2 class=\"wp-block-heading\">PLOT Column Advantages<\/h2>\n\n\n\n<p>Gas-liquid chromatography (GLC), the most common mode of gas chromatography, has limited application in analyses of gases. Subambient temperatures often are required to achieve a separation, and cryogenic cooling systems are costly and inconvenient.<\/p>\n\n\n\n<p>Gas-solid chromatography (GSC), in which gaseous analytes are adsorbed onto the packing particles, rather than into a surface coating, is far more effective for separating gases. Difficult-to-separate small molecules, such as argon and oxygen, ethane isomers, and many others, can be separated by GSC at above ambient temperatures.<\/p>\n\n\n\n<p>When analyzing gases, PLOT columns offer significant advantages over both GLC and GSC packed columns, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Excellent separations at above ambient temperature; no costly cooling systems required.<\/li>\n\n\n\n<li>Sharper peaks, due to smaller tubing internal diameters.<\/li>\n\n\n\n<li>Higher efficiency and greater sensitivity.<\/li>\n<\/ul>\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\/19720\">                                Catalog No. 19720                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Colonna PLOT Rt-Msieve 5A, 15 m, ID 0,32 mm, 30 \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\/19720\">Esplora Prodotto<\/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\/19741\">                                Catalog No. 19741                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Colonna PLOT Rt-Q-BOND, 15 m, ID 0,53 mm, 20 \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\/19741\">Esplora Prodotto<\/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>A Restek PLOT column can be your best solution for difficult separations of gaseous analytes. Rt-Msieve 5A PLOT columns offer fast, efficient separation of argon\/oxygen, hydrogen\/helium, and other permanent gases, including permanent gases in refinery or natural gas. You can make difficult separations without subambient temperatures, e.g.: separate oxygen from argon to baseline in approximately 4 minutes.<\/p>\n","protected":false},"author":37,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[7],"tags":[],"industries-application":[2157],"post-badge":[],"resource-type":[],"product-library":[2372,2384],"resource-technique":[2294],"hf_cat_post":[650],"ppma_author":[581,620],"class_list":["post-43880","post","type-post","status-publish","format-standard","hentry","category-articles","industries-application-energy","product-library-gas-chromatography-products","product-library-gc-columns","resource-technique-gas-chromatography-gc"],"acf":[],"taxonomy_info":{"category":[{"value":7,"label":"Articles"}],"industries-application":[{"value":2157,"label":"Energy"}],"product-library":[{"value":2372,"label":"Gas Chromatography Products"},{"value":2384,"label":"GC Columns"}],"resource-technique":[{"value":2294,"label":"Gas Chromatography (GC)"}]},"featured_image_src_large":false,"author_info":{"display_name":"Gary Stidsen","author_link":"https:\/\/discover.restek.com\/it\/author\/gary-stidsen\/"},"comment_info":0,"category_info":[{"term_id":7,"name":"Articles","slug":"articles","term_group":0,"term_taxonomy_id":7,"taxonomy":"category","description":"","parent":0,"count":467,"filter":"raw","cat_ID":7,"category_count":467,"category_description":"","cat_name":"Articles","category_nicename":"articles","category_parent":0}],"tag_info":false,"authors":[{"term_id":581,"user_id":37,"is_guest":0,"slug":"gary-stidsen","display_name":"Gary Stidsen","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/people-stidsen-gary.png","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/people-stidsen-gary.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":620,"user_id":0,"is_guest":1,"slug":"barry-burger","display_name":"Barry Burger","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts\/43880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/users\/37"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/comments?post=43880"}],"version-history":[{"count":4,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts\/43880\/revisions"}],"predecessor-version":[{"id":79369,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/posts\/43880\/revisions\/79369"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/media?parent=43880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/categories?post=43880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/tags?post=43880"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/industries-application?post=43880"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/post-badge?post=43880"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/resource-type?post=43880"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/product-library?post=43880"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/resource-technique?post=43880"},{"taxonomy":"hf_cat_post","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/hf_cat_post?post=43880"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/it\/wp-json\/wp\/v2\/ppma_author?post=43880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}