{"id":11032,"date":"2026-03-29T14:01:00","date_gmt":"2026-03-29T07:01:00","guid":{"rendered":"https:\/\/chemicalexpressth.com\/?p=11032"},"modified":"2026-08-11T15:45:57","modified_gmt":"2026-08-11T08:45:57","slug":"ascentis-express-c18-hplc-column-merck-thailand","status":"publish","type":"post","link":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-c18-hplc-column-merck-thailand\/","title":{"rendered":"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results"},"content":{"rendered":"<style>  .chx-standalone-article h1 {       color: #222 !important;       line-height: 1.2 !important;       font-weight: bold !important;       text-align: center !important;       margin-top: 40px !important;       margin-bottom: 30px !important;      text-transform: none !important;   }  .chx-standalone-article h2 {      color: #24326d !important;      font-weight: bold !important;      text-transform: none !important; 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}  }<\/style>\n<div class=\"chx-standalone-article\">\n<div data-elementor-type=\"wp-post\" data-elementor-id=\"11032\" class=\"elementor elementor-11032\" data-elementor-post-type=\"post\">\n<div class=\"elementor-element elementor-element-4e5d6a3d e-flex e-con-boxed e-con e-parent\" data-id=\"4e5d6a3d\" data-element_type=\"container\" data-e-type=\"container\">\n<div class=\"e-con-inner\">\n<div class=\"elementor-element elementor-element-76505a0b elementor-widget elementor-widget-text-editor\" data-id=\"76505a0b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n<div class=\"elementor-widget-container\">\n<h1>Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results<\/h1>\n<div style=\"margin-bottom: 32px; text-align: center;\"><img decoding=\"async\" class=\"lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/Ascentis\u00ae-Express-C18-by-Merck-High-Speed-High-Resolution-HPLCUHPLC-for-Precise-Analytical-Results.png\" alt=\"Ascentis\u00ae Express C18 by Merck: High-Speed, High-Resolution HPLC\/UHPLC for Precise Analytical Results\"><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/div>\n<p>Laboratories require rapid, reliable, and high-resolution chromatographic separations to meet demanding analytical challenges. The Ascentis Express C18 HPLC column utilizes innovative Fused-Core\u00ae technology, providing unmatched speed and efficiency to elevate your chromatographic results. Discover how this advanced column addresses selectivity, reproducibility, and loading capacity needs in today&#8217;s analytical chemistry world.<\/p>\n<h2>Benefits of Ascentis Express C18 HPLC Column<\/h2>\n<ul>\n<li><strong>Faster separations:<\/strong> Delivers higher speed than fully porous particles of the same size for more rapid chromatographic work.<\/li>\n<li><strong>Higher efficiency:<\/strong> Provides higher efficiency than fully porous particles of the same size, with column efficiency typically 40% higher than fully porous particulate columns with the same particle size.<\/li>\n<li><strong>High-resolution results:<\/strong> Enables high speed and high resolution separations on HPLC and UHPLC instruments.<\/li>\n<li><strong>Improved system performance:<\/strong> Can help convert an HPLC system into a faster, high-performance workhorse.<\/li>\n<li><strong>Method flexibility:<\/strong> Offers broad selectivity to support analytical method development and separation optimization.<\/li>\n<li><strong>Consistent analytical results:<\/strong> Supports inert, stable, and reproducible operation for dependable chromatography.<\/li>\n<li><strong>Preparative suitability:<\/strong> Provides loading capacity suitable for preparative work.<\/li>\n<\/ul>\n<h2>Key Features of Ascentis Express C18 HPLC Column<\/h2>\n<ul>\n<li><strong>Column format:<\/strong> Fused-Core\u00ae HPLC column.<\/li>\n<li><strong>Particle platform:<\/strong> Superficially porous silica particles (SPP) with Fused-Core\u00ae technology.<\/li>\n<li><strong>Phase chemistry:<\/strong> Octadecyl (C18).<\/li>\n<li><strong>Silica type:<\/strong> Type B silica.<\/li>\n<li><strong>Surface treatment:<\/strong> Endcapped.<\/li>\n<\/ul>\n<h2>Technical Specifications of Ascentis\u00ae Express C18<\/h2>\n<div class=\"res-table-wrapper\">\n<table>\n<tbody>\n<tr>\n<th>Specification<\/th>\n<th>Technical Data<\/th>\n<\/tr>\n<tr>\n<td>Silica<\/td>\n<td>Type B (High purity silica)<\/td>\n<\/tr>\n<tr>\n<td>Particle Platform<\/td>\n<td>Superficially porous particles (SPP)<\/td>\n<\/tr>\n<tr>\n<td>Phase Chemistry<\/td>\n<td>Octadecyl<\/td>\n<\/tr>\n<tr>\n<td>Particle Size<\/td>\n<td>2.0 \u03bcm \/ 2.7 \u03bcm \/ 5.0 \u03bcm<\/td>\n<\/tr>\n<tr>\n<td>Pore Size<\/td>\n<td>90 \u00c5<\/td>\n<\/tr>\n<tr>\n<td>Carbon Load<\/td>\n<td>6.5% \/ 6.7% \/ 5.6%<\/td>\n<\/tr>\n<tr>\n<td>Surface Area<\/td>\n<td>120 m\u00b2\/g \/ 135 m\u00b2\/g \/ 90 m\u00b2\/g<\/td>\n<\/tr>\n<tr>\n<td>pH Range<\/td>\n<td>2 -9<\/td>\n<\/tr>\n<tr>\n<td>Max Temperature at Low pH<\/td>\n<td>60 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Max Temperature at High pH<\/td>\n<td>40 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Endcapped<\/td>\n<td>Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Application and Usage of Ascentis\u00ae Express C18<\/h2>\n<ul>\n<li><strong>Primary application area:<\/strong> U\/HPLC columns for fast and high resolution applications.<\/li>\n<li><strong>Method development starting point:<\/strong> Ascentis\u00ae Express C18 is the first choice for starting a new method.<\/li>\n<li><strong>Recommended mobile phases:<\/strong> Best used with mobile phases that are mixtures of methanol and water or acetonitrile and water.<\/li>\n<li><strong>Retention guidance:<\/strong> Increasing the organic solvent content will typically reduce sample retention.<\/li>\n<li><strong>Temperature guidance:<\/strong> Elevated temperatures at 40\u201360 \u00b0C reduce mobile-phase viscosity and enable faster flow rates with lower column pressure for higher sample throughput.<\/li>\n<li><strong>Named application:<\/strong> UHPLC-MS analysis of cannabinoids using Ascentis\u00ae Express C18.<\/li>\n<\/ul>\n<p>With over 23 years of expertise, Chemical Express is the official distributor of Merck in Thailand. The Ascentis\u00ae Express C18 and related products are available through Chemical Express, giving you access to genuine, high-performance chromatography solutions. We are committed to supporting your analytical needs with Merck products from our portfolio.<\/p>\n<div style=\"text-align: center; margin-top: 64px; padding-bottom: 60px;\">\n<h3 style=\"margin-bottom: 8px;\">Have questions about Ascentis\u00ae Express C18 or ready to order?<\/h3>\n<p>Simply fill out our Inquiry Form or chat with us instantly on Line using the buttons below.<br \/>We&#8217;re here to help!<\/p>\n<div style=\"display: flex; justify-content: center; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 20px;\"><a style=\"display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; background: #0b5ed7; color: #ffffff; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 16px; line-height: 1; white-space: nowrap;\" 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