{"id":43878,"date":"2020-10-27T14:30:00","date_gmt":"2020-10-27T14:30:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/gc-analysis-of-total-reduced-sulfurs-at-ppbv-levels\/"},"modified":"2026-01-03T18:50:46","modified_gmt":"2026-01-03T18:50:46","slug":"gc-analysis-of-total-reduced-sulfurs-at-ppbv-levels","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/zh-hans\/articles-ja\/pcar3245\/gc-analysis-of-total-reduced-sulfurs-at-ppbv-levels","title":{"rendered":"GC Analysis of Total Reduced Sulfurs at ppbv Levels"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>Reliable results for ppbv concentrations of highly active sulfur compounds.<\/li>\n\n\n\n<li>Inert, low bleed column resolves all analytes.<\/li>\n\n\n\n<li>Column compatible with SCD and other sulfur-specific detectors.<\/li>\n<\/ul>\n\n\n\n<p>Through the Clean Air Act, the United States Environmental Protection Agency (US EPA) regulates and limits the emission of toxic air pollutants. The determination of total reduced sulfurs, as required by CFR Title 40, requires the use of methods and equipment capable of providing full resolution as well as high sensitivity. Methods TO-15, TO-16 and TO-16A describe GC procedures that apply to the determination of reduced sulfurs from stationary sources, such as recovery furnaces, lime kilns, smelt dissolving tanks, fuel gas combustion devices, tail gas control units, and others. Method TO-16 specifies detectable concentrations of ppbv levels for dimethyl disulfide, dimethyl sulfide, hydrogen sulfide, and methyl mercaptan. While these methods do not specify the analytical GC column to use, they do state that the column must resolve the sulfur compounds.<\/p>\n\n\n\n<p>Our new 100% dimethylpolysiloxane column, the Rxi-1ms column, provides the ultra-low bleed required for low level detection and quantification of sulfur compounds. Its exceptional inertness allows complete separation of these very reactive compounds, with excellent peak shape, at ppbv levels. When this column is coupled with a sulfur chemiluminescence detector (SCD), the analysis is fast and simple.<\/p>\n\n\n\n<p>For our example analysis, we collected a 20 mL sample of a gaseous mixture of hydrogen sulfide, carbonyl sulfide, methyl mercaptan, ethyl mercaptan, and dimethyl sulfide in helium, using a Sulfinert-treated stainless steel sample loop. We transferred the sample to a SilcoCan air monitoring canister and pressurized the can to 30 psig with dry nitrogen. The Sulfinert passivation treatment on both the sample loop and canister prevented adsorption losses of the highly active sulfur compounds. We introduced a 1 mL aliquot of the diluted gaseous mixture into the Rxi-1ms column via a second Sulfinert-treated stainless-steel sample loop, using helium as a carrier, and analyzed the sample isothermally at 30 \u00b0C.<\/p>\n\n\n\n<p>Figure 1 shows the chromatography for the reduced sulfur compounds, demonstrating full resolution in less than 5 minutes. For collecting, storing, and analyzing active sulfur compounds at levels as low as single parts per billion, the performances of Sulfinert passivated containers and transfer systems, and inert Rxi-1ms columns, simply can\u2019t be equaled.<\/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>\u00a0Total resolution of reduced sulfur compounds, in less than 5 minutes, using an Rxi-1ms 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 wide-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ar00861.png\" alt=\"Sulfur Compounds on Rxi-1ms\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_AR00861<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-4 col-12\">\n<thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Hydrogen sulfide\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7783-06-4\/Hydrogen sulfide\" target=\"_blank\" rel=\"noopener\">Hydrogen sulfide<\/a><\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Carbonyl sulfide\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/463-58-1\/Carbonyl sulfide\" target=\"_blank\" rel=\"noopener\">Carbonyl sulfide<\/a><\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Methyl mercaptan\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/74-93-1\/Methyl mercaptan\" target=\"_blank\" rel=\"noopener\">Methyl mercaptan<\/a><\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Ethyl mercaptan\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/75-08-1\/Ethyl mercaptan\" target=\"_blank\" rel=\"noopener\">Ethyl mercaptan<\/a><\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Dimethyl sulfide\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/75-18-3\/Dimethyl sulfide\" target=\"_blank\" rel=\"noopener\">Dimethyl sulfide<\/a><\/td><\/tr>\n<\/tbody><\/table><\/div><div class=\"chromatogram-conditions\"><h4>Conditions<\/h4><div class=\"conditions-container container-fluid\"><div class=\"row\"><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Column<\/th><td>Rxi-1ms, 30 m, 0.32 mm ID, 4.00 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/13396?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR00861\" rel=\"noopener\">cat.# 13396<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>Hydrogen sulfide, carbonyl sulfide, methyl mercaptan, ethyl mercaptan, dimethyl sulfide<\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>Helium<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>100 ppbv<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td>splitless<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>30 \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>30 &#176;C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Carrier Gas<\/th><td>He, constant pressure<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Linear Velocity:<\/th><td>48 cm\/sec @ 30 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>SCD @ 800 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Notes<\/th><td>Injection: sample loop (30\u00b0C), 1 mL splitless direct<br \/><br \/>Sample Storage and Tansfer:<br \/>SilcoCan air monitoring canister with Siltek-treated 1\/4&#8243; valve (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/24182-650?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR00861\" rel=\"noopener\">cat.# 24182-650<\/a>); Sulfinert-treated gas sample loop, 1 cc (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/22848?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_AR00861\" rel=\"noopener\">cat.# 22848<\/a>); Sulfinert-treated gas sample loop, 10 cc (custom order)<\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ar00861.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\"><g data-name=\"Group 2996\"><path data-name=\"Rectangle 1246\" d=\"M0 0h18v18H0z\" style=\"fill: none;\"><\/path><\/g><g data-name=\"Group 2997\"><path data-name=\"Path 729\" d=\"M13.412 11.4v2.017H5.345V11.4H4v2.017a1.349 1.349 0 0 0 1.345 1.345h8.068a1.349 1.349 0 0 0 1.345-1.345V11.4zm-.672-2.694-.948-.948-1.741 1.735V4H8.706v5.493L6.965 7.758l-.948.948 3.361 3.361z\" transform=\"translate(-.437 -.414)\" style=\"fill: rgb(13, 123, 196);\"><\/path><\/g><\/svg>Download PDF<\/a><\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ultra-low bleed and exceptional inertness assure complete separation of sulfur compounds (hydrogen sulfide, carbonyl sulfide, dimethyl sulfide, mercaptans) on our new column, with excellent peak shapes and reliable quantification at ppbv levels. A Sulfinert treated sampling\/transfer system assures no adsorption losses of these very reactive compounds.<\/p>\n","protected":false},"author":3,"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":[789],"tags":[],"industries-application":[2272,2270,2271],"post-badge":[],"resource-type":[],"product-library":[2552,2564],"resource-technique":[2339,2340],"hf_cat_post":[650],"ppma_author":[749],"class_list":["post-43878","post","type-post","status-publish","format-standard","hentry","category-articles-ja","industries-application-air-monitoring-ja","industries-application-energy-ja","industries-application-environmental-ja","product-library-gas-chromatography-products-ja","product-library-gc-columns-ja","resource-technique-air-sampling-ja","resource-technique-gas-chromatography-gc-ja"],"acf":[],"taxonomy_info":{"category":[{"value":789,"label":"\u6280\u8853\u8cc7\u6599"}],"industries-application":[{"value":2272,"label":"\u5927\u6c17 \u5206\u6790"},{"value":2270,"label":"\u30a8\u30cd\u30eb\u30ae\u30fc"},{"value":2271,"label":"\u74b0\u5883 \u5206\u6790"}],"product-library":[{"value":2552,"label":"\u30ac\u30b9\u30af\u30ed\u30de\u30c8\u30b0\u30e9\u30d5\u30a3\u30fc"},{"value":2564,"label":"GC \u30ab\u30e9\u30e0"}],"resource-technique":[{"value":2339,"label":"\u30a8\u30a2\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0"},{"value":2340,"label":"\u30ac\u30b9\u30af\u30ed\u30de\u30c8\u30b0\u30e9\u30d5\u30a3\u30fc"}]},"featured_image_src_large":false,"author_info":{"display_name":"Audrey Crater","author_link":"https:\/\/discover.restek.com\/zh-hans\/author\/audrey-craterrestek-com\/"},"comment_info":0,"category_info":[{"term_id":789,"name":"\u6280\u8853\u8cc7\u6599","slug":"articles-ja","term_group":0,"term_taxonomy_id":789,"taxonomy":"category","description":"","parent":0,"count":467,"filter":"raw","cat_ID":789,"category_count":467,"category_description":"","cat_name":"\u6280\u8853\u8cc7\u6599","category_nicename":"articles-ja","category_parent":0}],"tag_info":false,"authors":[{"term_id":749,"user_id":0,"is_guest":1,"slug":"silvia-martinez","display_name":"Silvia Martinez","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\/zh-hans\/wp-json\/wp\/v2\/posts\/43878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=43878"}],"version-history":[{"count":4,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/43878\/revisions"}],"predecessor-version":[{"id":79483,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/43878\/revisions\/79483"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=43878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=43878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=43878"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/industries-application?post=43878"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/post-badge?post=43878"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/resource-type?post=43878"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/product-library?post=43878"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/resource-technique?post=43878"},{"taxonomy":"hf_cat_post","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/hf_cat_post?post=43878"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/ppma_author?post=43878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}