{"id":60454,"date":"2025-11-05T23:59:18","date_gmt":"2025-11-05T23:59:18","guid":{"rendered":"https:\/\/discover.restek.com\/?p=60454"},"modified":"2026-01-08T14:21:31","modified_gmt":"2026-01-08T14:21:31","slug":"does-the-outer-diameter-of-the-liner-matter","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/zh-hans\/articles\/gnot5258\/does-the-outer-diameter-of-the-liner-matter","title":{"rendered":"Does the Outer Diameter of the Liner Matter?"},"content":{"rendered":"\n<p><strong>Author(s):&nbsp;<\/strong>Chris English<br>Restek Corporation&nbsp;<br><br><strong>Published By:<\/strong> LCGC International&nbsp; &nbsp;<\/p>\n\n\n\n<p><strong>Issue:<\/strong> Volume 21, Issue 3<\/p>\n\n\n\n<p><strong>Year of Publication:&nbsp;<\/strong>2025<\/p>\n\n\n\n<p><strong>Link:&nbsp;<\/strong><a href=\"https:\/\/www.chromatographyonline.com\/view\/does-the-outer-diameter-of-the-liner-matter-\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.chromatographyonline.com\/view\/does-the-outer-diameter-of-the-liner-matter-<\/a><\/p>\n\n\n\n<p><strong>Abstract:&nbsp;<\/strong><br>Split injection in gas chromatography (GC), often described as \u201cshoot and dilute,\u201d offers advantages over splitless injection, including narrower peak widths, higher GC oven start temperatures, and reduced solvent effects. However, sensitivity decreases proportionally with the split ratio. Prior work highlights the importance of liner design\u2014particularly inner diameter and wool placement\u2014for efficient sample transfer across compounds ranging from C8 to C40. Liners with wool show consistent performance at a 20:1 split ratio, and a six-point calibration curve from 400:1 to 10:1 yielded a correlation coefficient of 0.99948. This study investigates whether liner outer diameter and configuration affect analytical performance at high split ratios (100:1, 500:1, 1000:1). Five liner types are tested using a polyaromatic hydrocarbon (PAH) standard, normalized to 2 ng on-column concentration. Results will clarify the impact of liner geometry on sample transfer efficiency and reproducibility under extreme split conditions.<\/p>\n\n\n\n<p><strong>Acknowledgment(s)<\/strong>: Special thanks to Jaap de Zeeuw (Restek Corporation, CreaVisions) for technical advice and review.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This study evaluates how gas chromatography liner geometry affects sample transfer efficiency and reproducibility at high split ratios using PAH standards.<\/p>\n","protected":false},"author":21,"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":[7,7],"tags":[],"industries-application":[],"post-badge":[],"resource-type":[568],"product-library":[2372,2386],"resource-technique":[],"hf_cat_post":[649],"ppma_author":[441],"class_list":{"0":"post-60454","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-articles","8":"resource-type-third-party-peer-reviewed-publications","9":"product-library-gas-chromatography-products","10":"product-library-inlet-supplies"},"acf":[],"taxonomy_info":{"category":[{"value":7,"label":"Articles"},{"value":7,"label":"Articles"}],"resource-type":[{"value":568,"label":"Third-Party &amp; Peer Reviewed Publications"}],"product-library":[{"value":2372,"label":"Gas Chromatography Products"},{"value":2386,"label":"Inlet Supplies"}]},"featured_image_src_large":false,"author_info":{"display_name":"Chris English","author_link":"https:\/\/discover.restek.com\/zh-hans\/author\/chris-english\/"},"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},{"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":441,"user_id":21,"is_guest":0,"slug":"chris-english","display_name":"Chris English","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/people-english-chris.png","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/people-english-chris.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/60454","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\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=60454"}],"version-history":[{"count":4,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/60454\/revisions"}],"predecessor-version":[{"id":60489,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/60454\/revisions\/60489"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=60454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=60454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=60454"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/industries-application?post=60454"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/post-badge?post=60454"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/resource-type?post=60454"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/product-library?post=60454"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/resource-technique?post=60454"},{"taxonomy":"hf_cat_post","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/hf_cat_post?post=60454"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/ppma_author?post=60454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}