{"id":10108,"date":"2026-03-17T16:35:36","date_gmt":"2026-03-17T09:35:36","guid":{"rendered":"https:\/\/chemicalexpressth.com\/?p=10108"},"modified":"2026-08-11T15:38:22","modified_gmt":"2026-08-11T08:38:22","slug":"ascentis-express-120a-c18-ph-plus-hplc-columns-merck","status":"publish","type":"post","link":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","title":{"rendered":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development"},"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;      margin-top: 35px !important;      margin-bottom: 20px !important;  }  .chx-standalone-article .res-table-wrapper {       width: 100% !important;       overflow-x: auto !important;       -webkit-overflow-scrolling: touch !important;       margin-bottom: 25px !important;   }  .chx-standalone-article table {       min-width: 600px !important;       width: 100% !important;   }  @media only screen and (min-width: 1025px) {    .chx-standalone-article h1 { font-size: 30px !important; }    .chx-standalone-article h2 { font-size: 24px !important; }  }  @media only screen and (max-width: 1024px) {    .chx-standalone-article h1 { font-size: 22px !important; margin-top: 30px !important; margin-bottom: 25px !important; }    .chx-standalone-article h2 { font-size: 20px !important; }  }  @media only screen and (max-width: 480px) {    .chx-standalone-article h1 { font-size: 15px !important; margin-top: 20px !important; margin-bottom: 20px !important; }    .chx-standalone-article h2 { font-size: 18px !important; }  }<\/style>\n<div class=\"chx-standalone-article\">\n<h1>Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development<\/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\/image-70.jpg\" alt=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\" \/><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\/image-70.jpg\" alt=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\" \/><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\/image-70.jpg\" alt=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\" \/><noscript><img data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg\" 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\" alt=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg\" alt=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\"><\/noscript><\/noscript><\/noscript><\/noscript><\/div>\n<p>Meeting the rigorous demands of modern analytical laboratories, Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns from Merck deliver exceptional stability, speed and versatility for analyses requiring high pH tolerance and high-temperature operation. Engineered with Fused-Core\u00ae particle technology, these columns enable robust separations of acids, bases, and challenging analytes\u2014making them ideal for pharmaceutical, clinical, and research environments.<\/p>\n<h2>Why Choose Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns<\/h2>\n<ul>\n<li><strong>High pH and high-temperature reliability:<\/strong> Supports demanding separations with exceptional stability in high pH mobile phases and elevated-temperature operating conditions.<\/li>\n<li><strong>Better results for basic compounds:<\/strong> Improves separations for basic analytes that can show poor peak shape, insufficient retention, or limited load tolerance at low pH.<\/li>\n<li><strong>Broader method development flexibility:<\/strong> Enables robust method development across a wide pH range for selective separation of acids, bases, neutrals, and zwitterions.<\/li>\n<li><strong>Faster, more efficient chromatography:<\/strong> Delivers enhanced separation speed and high chromatographic efficiency to help laboratories achieve fast analyses without sacrificing performance.<\/li>\n<li><strong>LC-MS compatibility:<\/strong> Offers excellent suitability for LC-MS applications where reliable chromatographic performance is required.<\/li>\n<li><strong>Reduced runtime and solvent consumption:<\/strong> Supports method modernization by reducing analysis time and significantly decreasing mobile phase use while maintaining required impurity resolution.<\/li>\n<li><strong>Consistent long-term performance:<\/strong> Maintains stable retention, symmetrical peak shapes, and stable back pressure during extended high pH use.<\/li>\n<li><strong>Reliable reproducibility:<\/strong> Provides strong lot-to-lot consistency, supporting method validation with low retention time variability across multiple compounds.<\/li>\n<\/ul>\n<h2>Key Design Features<\/h2>\n<ul>\n<li><strong>Fused-Core\u00ae particle technology:<\/strong> Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns are built on the Fused-Core\u00ae particle technology platform.<\/li>\n<li><strong>Particle platform:<\/strong> The column uses superficially porous particles (SPP).<\/li>\n<li><strong>Alkaline-resistant surface design:<\/strong> It features surface-modified organo-silane technology for alkaline resistance.<\/li>\n<li><strong>Silica composition:<\/strong> The stationary phase is based on Type B, high purity silica.<\/li>\n<li><strong>Phase chemistry:<\/strong> The column chemistry is dimethyloctadecylsilane with a surface-modified C18 phase.<\/li>\n<li><strong>Endcapping:<\/strong> The phase is endcapped.<\/li>\n<li><strong>USP classification:<\/strong> Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns are designated as USP L1.<\/li>\n<\/ul>\n<h2>Technical Specifications<\/h2>\n<ul>\n<li><strong>Silica<\/strong>: Type B (High purity silica)<\/li>\n<li><strong>Particle platform<\/strong>: Superficially porous particles (SPP)<\/li>\n<li><strong>Phase chemistry<\/strong>: Dimethyloctadecylsilane, surface modified<\/li>\n<li><strong>Endcapped<\/strong>: Yes<\/li>\n<li><strong>USP<\/strong>: L1<\/li>\n<li><strong>Particle size<\/strong>: 2.7 \u03bcm<\/li>\n<li><strong>Pore size<\/strong>: 120 \u00c5<\/li>\n<li><strong>Carbon load<\/strong>: 5.6%<\/li>\n<li><strong>Surface area<\/strong>: 75 m\u00b2\/g<\/li>\n<li><strong>pH range<\/strong>: 2-12<\/li>\n<li><strong>Maximum temperature<\/strong>: 60 \u00b0C<\/li>\n<li><strong>Pressure stability<\/strong>: 600 bar<\/li>\n<\/ul>\n<h2>Available Column Formats in the Ascentis\u00ae Express 120 \u00c5 C18 pH+ Range<\/h2>\n<div class=\"res-table-wrapper\">\n<table>\n<tbody>\n<tr>\n<th style=\"background-color: #24326d; color: #ffffff; font-weight: bold;\">Length<\/th>\n<th style=\"background-color: #24326d; color: #ffffff; font-weight: bold;\">I.D. (mm)<\/th>\n<th style=\"background-color: #24326d; color: #ffffff; font-weight: bold;\">Description<\/th>\n<\/tr>\n<tr>\n<td>50 mm<\/td>\n<td>1.5<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 5 cm x 1.5 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>100 mm<\/td>\n<td>1.5<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u03bcm, 10 cm x 1.5 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>150 mm<\/td>\n<td>1.5<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 15 cm x 1.5 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>50 mm<\/td>\n<td>2.1<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 5 cm x 2.1 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>100 mm<\/td>\n<td>2.1<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 10 cm x 2.1 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>150 mm<\/td>\n<td>2.1<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u03bcm, 15 cm x 2.1 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>50 mm<\/td>\n<td>3.0<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 5 cm x 3.0 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>100 mm<\/td>\n<td>3.0<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u03bcm, 10 cm x 3.0 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>150 mm<\/td>\n<td>3.0<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 15 cm x 3.0 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>50 mm<\/td>\n<td>4.6<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 5 cm x 4.6 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>100 mm<\/td>\n<td>4.6<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u03bcm, 10 cm x 4.6 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>150 mm<\/td>\n<td>4.6<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 15 cm x 4.6 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>250 mm<\/td>\n<td>4.6<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, 25 cm x 4.6 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>5 mm<\/td>\n<td>2.1<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u00b5m, Guard column 5 mm x 2.1 mm I.D.<\/td>\n<\/tr>\n<tr>\n<td>5 mm<\/td>\n<td>3.0<\/td>\n<td>Ascentis\u00ae Express 120 \u00c5 C18 pH+, 2.7 \u03bcm, Guard column 5 mm x 3.0 mm I.D.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Chemical Express, with over 23 years of expertise and as the official distributor of Merck in Thailand, provides reliable access to Ascentis\u00ae Express 120 \u00c5 C18 pH+ columns and other premium analytical solutions. Enhance your chromatography workflow by ordering genuine products from the trusted experts at Chemical Express.<\/p>\n<div style=\"text-align: center; margin-top: 64px; padding-bottom: 60px;\">\n<h3 style=\"margin-bottom: 8px;\">Have questions 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;\" href=\"https:\/\/forms.zohopublic.com\/chatchawan1\/form\/WebsiteLeadFormINQUIRYFORM\/formperma\/oH9iL6pKdhH5WoJRahWoHuc5H_68uNoURPhu7cgU_rY?utm_source=n8n&amp;utm_medium=article&amp;utm_campaign=content2026_03_Product&amp;utm_content=ascentis-express-120a-c18-ph-plus-hplc-columns-merck&amp;utm_term=inquiry_form&amp;utm_id=CONTENT_2026_03_Product\" target=\"_blank\" rel=\"noopener noreferrer\" data-track=\"enquiry_cta\" data-intent=\"lead\">Submit Inquiry<\/a><br \/><a style=\"display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; background: #06c755; color: #ffffff; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 16px; line-height: 1; white-space: nowrap;\" href=\"https:\/\/liff.line.me\/2004801212-fkTuG4m6?utm_source=website&#038;utm_medium=article&#038;utm_campaign=product_guide_2026&#038;utm_content=product_guide_article&#038;utm_term=add_line&#038;utm_id=product_guide_2026\" target=\"_blank\" rel=\"noopener noreferrer\" data-track=\"line_cta\" data-intent=\"add_line\">Add LINE<\/a><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.<\/p>","protected":false},"author":5,"featured_media":10104,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_eb_attr":"","content-type":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","_uf_show_specific_survey":0,"_uf_disable_surveys":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[58],"tags":[],"class_list":["post-10108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-guide-articles"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yoon De Par Oo\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"th_TH\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Chemical Express Thailand - Thailand&#039;s Reliable Chemical and Material Supplier with 20+years experience\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand\" \/>\n\t\t<meta property=\"og:description\" content=\"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/cropped-Untitled-design-56-e1686212348797.png\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/cropped-Untitled-design-56-e1686212348797.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"3375\" \/>\n\t\t<meta property=\"og:image:height\" content=\"1127\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-03-17T09:35:36+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-08-11T08:38:22+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/cropped-Untitled-design-56-e1686212348797.png\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#blogposting\",\"name\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand\",\"headline\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\",\"author\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/author\\\/yoon\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/image-70.jpg\",\"width\":1312,\"height\":816,\"caption\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\"},\"datePublished\":\"2026-03-17T16:35:36+07:00\",\"dateModified\":\"2026-08-11T15:38:22+07:00\",\"inLanguage\":\"th\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#webpage\"},\"articleSection\":\"Product Guide, \\u0e44\\u0e17\\u0e22\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/#listItem\",\"name\":\"Articles\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/#listItem\",\"position\":2,\"name\":\"Articles\",\"item\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/product-guide-articles\\\/#listItem\",\"name\":\"Product Guide\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/product-guide-articles\\\/#listItem\",\"position\":3,\"name\":\"Product Guide\",\"item\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/product-guide-articles\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#listItem\",\"name\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/#listItem\",\"name\":\"Articles\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#listItem\",\"position\":4,\"name\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/category\\\/articles\\\/product-guide-articles\\\/#listItem\",\"name\":\"Product Guide\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#organization\",\"name\":\"Chemical Express Thailand\",\"description\":\"Thailand's Reliable Chemical and Material Supplier with 20+years experience\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/Untitled-design-63.png\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#organizationLogo\",\"width\":1094,\"height\":313},\"image\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#organizationLogo\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/author\\\/yoon\\\/#author\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/author\\\/yoon\\\/\",\"name\":\"Yoon De Par Oo\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#webpage\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/\",\"name\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand\",\"description\":\"Order Ascentis Express 120 \\u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.\",\"inLanguage\":\"th\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#breadcrumblist\"},\"author\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/author\\\/yoon\\\/#author\"},\"creator\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/author\\\/yoon\\\/#author\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/image-70.jpg\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#mainImage\",\"width\":1312,\"height\":816,\"caption\":\"Ascentis\\u00ae Express 120 \\u00c5 C18 pH+ U\\\/HPLC Columns by Merck\\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#mainImage\"},\"datePublished\":\"2026-03-17T16:35:36+07:00\",\"dateModified\":\"2026-08-11T15:38:22+07:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#website\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/\",\"name\":\"Chemical Express Thailand\",\"description\":\"Thailand's Reliable Chemical and Material Supplier with 20+years experience\",\"inLanguage\":\"th\",\"publisher\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","description":"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.","canonical_url":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BlogPosting","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#blogposting","name":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","headline":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development","author":{"@id":"https:\/\/chemicalexpressth.com\/th\/author\/yoon\/#author"},"publisher":{"@id":"https:\/\/chemicalexpressth.com\/th\/#organization"},"image":{"@type":"ImageObject","url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","width":1312,"height":816,"caption":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development"},"datePublished":"2026-03-17T16:35:36+07:00","dateModified":"2026-08-11T15:38:22+07:00","inLanguage":"th","mainEntityOfPage":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#webpage"},"isPartOf":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#webpage"},"articleSection":"Product Guide, \u0e44\u0e17\u0e22"},{"@type":"BreadcrumbList","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/#listItem","position":1,"name":"Home","item":"https:\/\/chemicalexpressth.com\/th\/","nextItem":{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/#listItem","name":"Articles"}},{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/#listItem","position":2,"name":"Articles","item":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/","nextItem":{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/product-guide-articles\/#listItem","name":"Product Guide"},"previousItem":{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/product-guide-articles\/#listItem","position":3,"name":"Product Guide","item":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/product-guide-articles\/","nextItem":{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#listItem","name":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development"},"previousItem":{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/#listItem","name":"Articles"}},{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#listItem","position":4,"name":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development","previousItem":{"@type":"ListItem","@id":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/product-guide-articles\/#listItem","name":"Product Guide"}}]},{"@type":"Organization","@id":"https:\/\/chemicalexpressth.com\/th\/#organization","name":"Chemical Express Thailand","description":"Thailand's Reliable Chemical and Material Supplier with 20+years experience","url":"https:\/\/chemicalexpressth.com\/th\/","logo":{"@type":"ImageObject","url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/Untitled-design-63.png","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#organizationLogo","width":1094,"height":313},"image":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#organizationLogo"}},{"@type":"Person","@id":"https:\/\/chemicalexpressth.com\/th\/author\/yoon\/#author","url":"https:\/\/chemicalexpressth.com\/th\/author\/yoon\/","name":"Yoon De Par Oo"},{"@type":"WebPage","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#webpage","url":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","name":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","description":"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.","inLanguage":"th","isPartOf":{"@id":"https:\/\/chemicalexpressth.com\/th\/#website"},"breadcrumb":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#breadcrumblist"},"author":{"@id":"https:\/\/chemicalexpressth.com\/th\/author\/yoon\/#author"},"creator":{"@id":"https:\/\/chemicalexpressth.com\/th\/author\/yoon\/#author"},"image":{"@type":"ImageObject","url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#mainImage","width":1312,"height":816,"caption":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development"},"primaryImageOfPage":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#mainImage"},"datePublished":"2026-03-17T16:35:36+07:00","dateModified":"2026-08-11T15:38:22+07:00"},{"@type":"WebSite","@id":"https:\/\/chemicalexpressth.com\/th\/#website","url":"https:\/\/chemicalexpressth.com\/th\/","name":"Chemical Express Thailand","description":"Thailand's Reliable Chemical and Material Supplier with 20+years experience","inLanguage":"th","publisher":{"@id":"https:\/\/chemicalexpressth.com\/th\/#organization"}}]},"og:locale":"th_TH","og:site_name":"Chemical Express Thailand - Thailand's Reliable Chemical and Material Supplier with 20+years experience","og:type":"article","og:title":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","og:description":"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.","og:url":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","og:image":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/cropped-Untitled-design-56-e1686212348797.png","og:image:secure_url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/cropped-Untitled-design-56-e1686212348797.png","og:image:width":3375,"og:image:height":1127,"article:published_time":"2026-03-17T09:35:36+00:00","article:modified_time":"2026-08-11T08:38:22+00:00","twitter:card":"summary_large_image","twitter:title":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","twitter:description":"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.","twitter:image":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/cropped-Untitled-design-56-e1686212348797.png"},"aioseo_meta_data":{"post_id":"10108","title":null,"description":null,"keywords":null,"keyphrases":{"focus":[],"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"BlogPosting","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":{"faqs":[],"keyPoints":[],"titles":[],"descriptions":[],"socialPosts":{"email":[],"linkedin":[],"twitter":[],"facebook":[],"instagram":[]}},"created":"2026-03-17 09:35:42","updated":"2026-09-16 08:01:57","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/chemicalexpressth.com\/th\/\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/chemicalexpressth.com\/th\/category\/articles\/\" title=\"Articles\">Articles<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/chemicalexpressth.com\/th\/category\/articles\/product-guide-articles\/\" title=\"Product Guide\">Product Guide<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">\u00bb<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tAscentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/chemicalexpressth.com\/th\/"},{"label":"Articles","link":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/"},{"label":"Product Guide","link":"https:\/\/chemicalexpressth.com\/th\/category\/articles\/product-guide-articles\/"},{"label":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development","link":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/"}],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/\" \/>\n<meta property=\"og:locale\" content=\"th_TH\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand\" \/>\n<meta property=\"og:description\" content=\"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/\" \/>\n<meta property=\"og:site_name\" content=\"Chemical Express Thailand\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-17T09:35:36+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-11T08:38:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1312\" \/>\n\t<meta property=\"og:image:height\" content=\"816\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Yoon De Par Oo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Yoon De Par Oo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u0e19\u0e32\u0e17\u0e35\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/\"},\"author\":{\"name\":\"Yoon De Par Oo\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#\\\/schema\\\/person\\\/927b855d5fc55a74e8aeb09eebaa1b23\"},\"headline\":\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\\\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\",\"datePublished\":\"2026-03-17T09:35:36+00:00\",\"dateModified\":\"2026-08-11T08:38:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/\"},\"wordCount\":654,\"publisher\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/image-70.jpg\",\"articleSection\":[\"Product Guide\"],\"inLanguage\":\"th\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/\",\"name\":\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\\\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/image-70.jpg\",\"datePublished\":\"2026-03-17T09:35:36+00:00\",\"dateModified\":\"2026-08-11T08:38:22+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#breadcrumb\"},\"inLanguage\":\"th\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"th\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#primaryimage\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/image-70.jpg\",\"contentUrl\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/image-70.jpg\",\"width\":1312,\"height\":816,\"caption\":\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\\\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/articles\\\/product-guide-articles\\\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/chemicalexpressth.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\\\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#website\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/\",\"name\":\"Chemical Express Thailand\",\"description\":\"Thailand&#039;s Reliable Chemical and Material Supplier with 20+years experience\",\"publisher\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"th\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#organization\",\"name\":\"Chemical Express Thailand\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"th\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/Untitled-design-63.png\",\"contentUrl\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/2020\\\/02\\\/Untitled-design-63.png\",\"width\":1094,\"height\":313,\"caption\":\"Chemical Express Thailand\"},\"image\":{\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/#\\\/schema\\\/person\\\/927b855d5fc55a74e8aeb09eebaa1b23\",\"name\":\"Yoon De Par Oo\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"th\",\"@id\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/nsl_avatars\\\/4e984d4df674c0e335ca9d4e7bd9e09a.png\",\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/nsl_avatars\\\/4e984d4df674c0e335ca9d4e7bd9e09a.png\",\"contentUrl\":\"https:\\\/\\\/chemicalexpressth.com\\\/wp-content\\\/uploads\\\/nsl_avatars\\\/4e984d4df674c0e335ca9d4e7bd9e09a.png\",\"caption\":\"Yoon De Par Oo\"},\"url\":\"https:\\\/\\\/chemicalexpressth.com\\\/th\\\/author\\\/yoon\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","og_locale":"th_TH","og_type":"article","og_title":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","og_description":"Order Ascentis Express 120 \u00c5 C18 pH+ HPLC Columns from Chemical Express, the official Merck distributor in Thailand. Achieve high pH stability and efficiency.","og_url":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","og_site_name":"Chemical Express Thailand","article_published_time":"2026-03-17T09:35:36+00:00","article_modified_time":"2026-08-11T08:38:22+00:00","og_image":[{"width":1312,"height":816,"url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","type":"image\/jpeg"}],"author":"Yoon De Par Oo","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Yoon De Par Oo","Est. reading time":"4 \u0e19\u0e32\u0e17\u0e35"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#article","isPartOf":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/"},"author":{"name":"Yoon De Par Oo","@id":"https:\/\/chemicalexpressth.com\/th\/#\/schema\/person\/927b855d5fc55a74e8aeb09eebaa1b23"},"headline":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development","datePublished":"2026-03-17T09:35:36+00:00","dateModified":"2026-08-11T08:38:22+00:00","mainEntityOfPage":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/"},"wordCount":654,"publisher":{"@id":"https:\/\/chemicalexpressth.com\/th\/#organization"},"image":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#primaryimage"},"thumbnailUrl":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","articleSection":["Product Guide"],"inLanguage":"th"},{"@type":"WebPage","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","url":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/","name":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development - Chemical Express Thailand","isPartOf":{"@id":"https:\/\/chemicalexpressth.com\/th\/#website"},"primaryImageOfPage":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#primaryimage"},"image":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#primaryimage"},"thumbnailUrl":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","datePublished":"2026-03-17T09:35:36+00:00","dateModified":"2026-08-11T08:38:22+00:00","breadcrumb":{"@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#breadcrumb"},"inLanguage":"th","potentialAction":[{"@type":"ReadAction","target":["https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/"]}]},{"@type":"ImageObject","inLanguage":"th","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#primaryimage","url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","contentUrl":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/image-70.jpg","width":1312,"height":816,"caption":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development"},{"@type":"BreadcrumbList","@id":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/ascentis-express-120a-c18-ph-plus-hplc-columns-merck\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/chemicalexpressth.com\/"},{"@type":"ListItem","position":2,"name":"Ascentis\u00ae Express 120 \u00c5 C18 pH+ U\/HPLC Columns by Merck\u2014Optimal High pH Stability and Fast Chromatography for Analytical Method Development"}]},{"@type":"WebSite","@id":"https:\/\/chemicalexpressth.com\/th\/#website","url":"https:\/\/chemicalexpressth.com\/th\/","name":"Chemical Express Thailand","description":"Thailand&#039;s Reliable Chemical and Material Supplier with 20+years experience","publisher":{"@id":"https:\/\/chemicalexpressth.com\/th\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/chemicalexpressth.com\/th\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"th"},{"@type":"Organization","@id":"https:\/\/chemicalexpressth.com\/th\/#organization","name":"Chemical Express Thailand","url":"https:\/\/chemicalexpressth.com\/th\/","logo":{"@type":"ImageObject","inLanguage":"th","@id":"https:\/\/chemicalexpressth.com\/th\/#\/schema\/logo\/image\/","url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/Untitled-design-63.png","contentUrl":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2020\/02\/Untitled-design-63.png","width":1094,"height":313,"caption":"Chemical Express Thailand"},"image":{"@id":"https:\/\/chemicalexpressth.com\/th\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/chemicalexpressth.com\/th\/#\/schema\/person\/927b855d5fc55a74e8aeb09eebaa1b23","name":"Yoon De Par Oo","image":{"@type":"ImageObject","inLanguage":"th","@id":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/nsl_avatars\/4e984d4df674c0e335ca9d4e7bd9e09a.png","url":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/nsl_avatars\/4e984d4df674c0e335ca9d4e7bd9e09a.png","contentUrl":"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/nsl_avatars\/4e984d4df674c0e335ca9d4e7bd9e09a.png","caption":"Yoon De Par Oo"},"url":"https:\/\/chemicalexpressth.com\/th\/author\/yoon\/"}]}},"_links":{"self":[{"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/posts\/10108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/comments?post=10108"}],"version-history":[{"count":8,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/posts\/10108\/revisions"}],"predecessor-version":[{"id":13751,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/posts\/10108\/revisions\/13751"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/media\/10104"}],"wp:attachment":[{"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/media?parent=10108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/categories?post=10108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chemicalexpressth.com\/th\/wp-json\/wp\/v2\/tags?post=10108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}