{"id":3796,"date":"2025-08-01T13:46:55","date_gmt":"2025-08-01T13:46:55","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/what-liner-do-i-need-for\/"},"modified":"2026-09-25T20:50:17","modified_gmt":"2026-09-25T20:50:17","slug":"what-liner-do-i-need-for","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/de\/faq\/gnot5040\/what-liner-do-i-need-for","title":{"rendered":"What liner do I need for\u2026?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">In order to select the proper liner, you must first know your application needs:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Split injection is typically used for samples that are dirty and\/or have a broad range of analyte concentrations. Split injection must quickly and completely vaporize the sample into a homogenous cloud, and there are numerous liner designs that achieve this. The most common is the straight tube packed with fused silica wool. Alternate designs include the laminar cup, frit splitter, cup splitter, cyclo, baffle splitter, and mini-Lam splitter, all of which are designed to facilitate rapid, homogenous vaporization; yield reproducible performance; and minimize molecular weight discrimination.<\/li>\n\n\n\n<li>Splitless injection is typically used for trace-level analyses. Generally, the liner should have a taper design (single, double, or recessed) to help contain the vapor cloud in the liner during the extended hold time and to minimize the breakdown of compounds sensitive to catalytic decomposition from contact with metal inlet surfaces. The single taper design is used with a single column; the recessed design can be used for a dual-column application. Both are routinely packed with fused silica wool.<\/li>\n\n\n\n<li>Direct injection liners connect the column to the bottom of the inlet sleeve. This allows the sample to be swept directly into the column, eliminating injection port discrimination and sample contact with hot metal surfaces. Direct injection liners are available for packed column or capillary splitless injectors. We recommend a drilled Uniliner inlet liner for capillary split\/splitless injection ports.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">All liners, regardless of application, should always be deactivated. We also recommend that, whenever possible, they be packed with deactivated glass or fused silica wool to facilitate uniform sample vaporization and trap nonvolatile residue, thereby preventing column contamination.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns are-vertically-aligned-center has-border-color has-background is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\" style=\"border-color:#d8e5f0;border-radius:10px;background-color:#d8e5f0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-1\" style=\"color:#0f6da0\">Restek&#8217;s Topaz GC Inlet Liners<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Restek\u2019s Topaz GC inlet liners feature revolutionary technology and inertness to deliver the next level of True Blue Performance:<\/p>\n\n\n\n<ul style=\"margin-bottom:20px\" class=\"wp-block-list\">\n<li><strong>Deactivation<\/strong>\u2014unbelievably low breakdown for accurate and precise low-level GC analyses.<\/li>\n\n\n\n<li><strong>Reproducibility<\/strong>\u2014unbeatable manufacturing controls and QC testing for superior reliability across compound classes.<\/li>\n\n\n\n<li><strong>Productivity<\/strong>\u2014unparalleled cleanliness for maximized GC uptime and lab throughput.<\/li>\n<\/ul>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns104379_7af9ae-b4{gap:var(--global-kb-gap-md, 2rem);justify-content:flex-start;align-items:center;}.kt-btns104379_7af9ae-b4 .kt-button{font-weight:normal;font-style:normal;}.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns104379_7af9ae-b4 .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns104379_7af9ae-b4\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn104379_ba1339-09.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn104379_ba1339-09.kb-button{background:#008cd4;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-right-radius:10px;border-bottom-left-radius:10px;padding:var(--kb-btn-padding);margin:var(--kb-btn-margin);box-shadow:none;}.wp-block-kadence-advancedbtn .kb-btn104379_ba1339-09.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn104379_ba1339-09.kb-button:focus{background:var(--global-palette2, #2B6CB0);box-shadow:var(--kb-btn-shadow-hover, none);}<\/style><a class=\"kb-button kt-button button kb-btn104379_ba1339-09 kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"https:\/\/discover.restek.com\/de\/topaz-gc-inlet-liner\/\"><span class=\"kt-btn-inner-text\"><strong>LEARN MORE<\/strong><\/span><\/a>\n\n<style>ul.menu .wp-block-kadence-advancedbtn .kb-btn104379_614e75-66.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn104379_614e75-66.kb-button{background:#008cd4;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-right-radius:10px;border-bottom-left-radius:10px;padding:var(--kb-btn-padding);margin:var(--kb-btn-margin);box-shadow:none;}.wp-block-kadence-advancedbtn .kb-btn104379_614e75-66.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn104379_614e75-66.kb-button:focus{background:var(--global-palette2, #2B6CB0);box-shadow:var(--kb-btn-shadow-hover, none);}<\/style><a class=\"kb-button kt-button button kb-btn104379_614e75-66 kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"https:\/\/www.restek.com\/c\/1484\" target=\"_blank\" rel=\"noopener\"><span class=\"kt-btn-inner-text\"><strong>SHOP LINERS<\/strong><\/span><\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"799\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/Topaz-1024x799.png\" alt=\"\" class=\"wp-image-29812\" style=\"width:170px;height:auto\" title=\"-\" srcset=\"https:\/\/discover.restek.com\/wp-content\/uploads\/Topaz-1024x799.png 1024w, https:\/\/discover.restek.com\/wp-content\/uploads\/Topaz-300x234.png 300w, https:\/\/discover.restek.com\/wp-content\/uploads\/Topaz-768x599.png 768w, https:\/\/discover.restek.com\/wp-content\/uploads\/Topaz-1536x1198.png 1536w, https:\/\/discover.restek.com\/wp-content\/uploads\/Topaz.png 1632w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div><\/div>\n<\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In order to select the proper liner, you must first know your application needs: All liners, regardless of application, should always be deactivated. We also recommend that, whenever possible, they be packed with deactivated glass or fused silica wool to facilitate uniform sample vaporization and trap nonvolatile residue, thereby preventing column contamination.<\/p>\n","protected":false},"author":11,"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":"","_ppma_block_editor_authors":""},"categories":[2808],"tags":[2681,2793,2794],"industries-application":[],"post-badge":[],"resource-type":[],"product-library":[],"resource-technique":[],"ppma_author":[414],"class_list":["post-3796","post","type-post","status-publish","format-standard","hentry","category-faq","tag-faq-gc-accessories","tag-faq-inlet-liners","tag-topaz-liners"],"acf":[],"taxonomy_info":{"category":[{"value":2808,"label":"FAQ"}],"post_tag":[{"value":2681,"label":"FAQ: GC Accessories"},{"value":2793,"label":"FAQ: Inlet Liners"},{"value":2794,"label":"Topaz Liners"}]},"featured_image_src_large":false,"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/de\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":2808,"name":"FAQ","slug":"faq","term_group":0,"term_taxonomy_id":2808,"taxonomy":"category","description":"","parent":0,"count":309,"filter":"raw","cat_ID":2808,"category_count":309,"category_description":"","cat_name":"FAQ","category_nicename":"faq","category_parent":0}],"tag_info":[{"term_id":2681,"name":"FAQ: GC Accessories","slug":"faq-gc-accessories","term_group":0,"term_taxonomy_id":2681,"taxonomy":"post_tag","description":"Browse frequently asked questions for GC accessories.","parent":0,"count":22,"filter":"raw"},{"term_id":2793,"name":"FAQ: Inlet Liners","slug":"faq-inlet-liners","term_group":0,"term_taxonomy_id":2793,"taxonomy":"post_tag","description":"Browse frequently asked questions for Restek inlet liners.","parent":0,"count":5,"filter":"raw"},{"term_id":2794,"name":"Topaz Liners","slug":"topaz-liners","term_group":0,"term_taxonomy_id":2794,"taxonomy":"post_tag","description":"Explore Topaz Liner Resources","parent":0,"count":28,"filter":"raw"}],"authors":[{"term_id":414,"user_id":11,"is_guest":0,"slug":"restek-corporation","display_name":"Restek Corporation","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg"},"author_category":"1","first_name":"Restek","last_name":"Corporation","user_url":"https:\/\/www.linkedin.com\/company\/restek-corporation\/posts\/?feedView=all","job_title":"Chromatography Products and Solutions","description":"Restek is a leading provider of chromatography columns, accessories, and certified reference materials. Trust Restek for reliable, high-quality analytical solutions."}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts\/3796","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/comments?post=3796"}],"version-history":[{"count":3,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts\/3796\/revisions"}],"predecessor-version":[{"id":104531,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts\/3796\/revisions\/104531"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/media?parent=3796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/categories?post=3796"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/tags?post=3796"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/industries-application?post=3796"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/post-badge?post=3796"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/resource-type?post=3796"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/product-library?post=3796"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/resource-technique?post=3796"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/ppma_author?post=3796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}