{"id":48519,"date":"2014-02-04T13:30:00","date_gmt":"2014-02-04T13:30:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas\/"},"modified":"2025-11-19T19:51:13","modified_gmt":"2025-11-19T19:51:13","slug":"simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/fr\/blog-fr\/gnbl4796\/simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas","title":{"rendered":"Simple translation of GC methods from helium to hydrogen carrier gas"},"content":{"rendered":"\n<p>I had a presentation at PittCon last year discussing using hydrogen and nitrogen carrier gases for the gas chromatography of organochlorine pesticides.&nbsp; I showed how you can substitute nitrogen at the same linear velocity as hydrogen, while keeping the same oven temperature program used for hydrogen and get a similar chromatogram, albeit with wider peaks and less peak separation for nitrogen.&nbsp; One thing that allows that substitution to be successful is the excellent selectivity of the&nbsp;Rtx-CLPesticides GC column&nbsp;for organochlorine pesticides.<\/p>\n\n\n\n<p>Jaap de Zeeuw challenged me to do a similar experiment and go from helium to hydrogen, taking a look to see if any loss in separation occurred, since presumably hydrogen would drop below sub-optimum average linear velocity.&nbsp; I present the work here and I\u2019m happy to say there was no real loss in separation.&nbsp; I used a Restek Method Translator to match the hydrogen linear velocity with my original linear velocity from a Speed Optimized Flow for helium and then kept the GC oven program the same.&nbsp; As you can see, the chromatograms are almost identical for helium and hydrogen methods, although the responses drop by about half when using the Agilent \u00b5-ECD with hydrogen.<\/p>\n\n\n\n<p>This approach should allow an easier entry for people making the switch from helium to hydrogen carrier gas for GC.<\/p>\n\n\n\n<p>More later&#8230;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"770\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-01-1024x770.jpg\" alt=\"\" class=\"wp-image-16792\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-01-1024x770.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-01-300x226.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-01-768x578.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-01.jpg 1482w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"769\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-02-1024x769.jpg\" alt=\"\" class=\"wp-image-16798\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-02-1024x769.jpg 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-02-300x225.jpg 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-02-768x577.jpg 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/blog-simple-translation-of-gc-methods-from-helium-to-hydrogen-carrier-gas-02.jpg 1480w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>I had a presentation at PittCon last year discussing using hydrogen and nitrogen carrier gases for the gas chromatography of organochlorine pesticides. I showed how you can substitute nitrogen at the same linear velocity as hydrogen, while keeping the same&#8230;<\/p>\n","protected":false},"author":1,"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":[791],"tags":[],"industries-application":[2209,2210,2208,2214,2216,2211,2758,2213],"post-badge":[],"resource-type":[],"product-library":[],"resource-technique":[2316],"hf_cat_post":[623],"ppma_author":[590],"class_list":["post-48519","post","type-post","status-publish","format-standard","hentry","category-blog-fr","industries-application-analyses-de-lair","industries-application-eau-potable-eaux-usees","industries-application-environnement","industries-application-industrie-agroalimentaire","industries-application-securite-alimentaire","industries-application-hygiene-industrielle","industries-application-semivolatiles","industries-application-sols-sediments-biote","resource-technique-chromatographie-en-phase-gazeuse-gc"],"acf":[],"taxonomy_info":{"category":[{"value":791,"label":"Blog"}],"industries-application":[{"value":2209,"label":"Analyses de l'air"},{"value":2210,"label":"Eau potable et eaux us\u00e9es"},{"value":2208,"label":"Environnement"},{"value":2214,"label":"Industrie Agroalimentaire"},{"value":2216,"label":"S\u00e9curit\u00e9 alimentaire"},{"value":2211,"label":"Hygi\u00e8ne Industrielle"},{"value":2758,"label":"Semivolatiles"},{"value":2213,"label":"Sols, s\u00e9diments, biote"}],"resource-technique":[{"value":2316,"label":"Chromatographie en phase gazeuse (GC)"}]},"featured_image_src_large":false,"author_info":{"display_name":"DRCadmin","author_link":"https:\/\/discover.restek.com\/fr\/author\/drcadmin\/"},"comment_info":0,"category_info":[{"term_id":791,"name":"Blog","slug":"blog-fr","term_group":0,"term_taxonomy_id":791,"taxonomy":"category","description":"","parent":0,"count":442,"filter":"raw","cat_ID":791,"category_count":442,"category_description":"","cat_name":"Blog","category_nicename":"blog-fr","category_parent":0}],"tag_info":false,"authors":[{"term_id":590,"user_id":0,"is_guest":1,"slug":"jack-cochran","display_name":"Jack Cochran","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\/fr\/wp-json\/wp\/v2\/posts\/48519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/comments?post=48519"}],"version-history":[{"count":3,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/48519\/revisions"}],"predecessor-version":[{"id":66354,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/48519\/revisions\/66354"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/media?parent=48519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/categories?post=48519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/tags?post=48519"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/industries-application?post=48519"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/post-badge?post=48519"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/resource-type?post=48519"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/product-library?post=48519"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/resource-technique?post=48519"},{"taxonomy":"hf_cat_post","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/hf_cat_post?post=48519"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/ppma_author?post=48519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}