{"id":61920,"date":"2025-11-11T17:30:01","date_gmt":"2025-11-11T17:30:01","guid":{"rendered":"https:\/\/discover.restek.com\/?p=61920"},"modified":"2026-01-08T14:23:34","modified_gmt":"2026-01-08T14:23:34","slug":"nacrw","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/ja\/evenements\/gnot4518\/nacrw","title":{"rendered":"NACRW"},"content":{"rendered":"\n<style>\n\/*ContentStaticPageTemplate2 Edits *\/\n    \n  .ContentStaticPageTemplate2 {\n      padding-top: 0px !important;\n      background-color: #FFFFFF; \/*Top of page, hero, and bottom color.*\/\n  }\n  \n  ._RCContentStaticPage2Container .RCContentBreadcrumbs {\n      display: none;\n  }\n\n\n  \/*WordPress Customization*\/\n  .single-post h1 {\n    display: none;\n  }\n\n  .main-content h1 {\n    display: block;\n    padding: 20px 0;\n}\n\n  .single-post .author-down {\n    display: none;\n}\n\n.cat-name {\n    display: none;\n    margin-top: 0px !important;\n}\n  \n  .single-post p.cat-name {\n    display: none;\n}\n\n  .single-post p.date {\n    display: none;\n}\n\nnav.breadcrumbs {\n    display:none;\n}\n\n.content-area {\n    background-color: white;\n    margin-top: 0px !important;\n}\n\n.post-content {\n    margin-top: 0px !important;\n}\n\n.kt-clear {\n    margin-top: -10px;\n}\n\n.site-container, .site-header-row-layout-contained, .site-footer-row-layout-contained, .entry-hero-layout-contained, .comments-area, .alignfull > .wp-block-cover__inner-container, .alignwide > .wp-block-cover__inner-container {\n    max-width: 100% !important;\n    padding: 0px !important;\n}\n\n.slideshow-container {\n    max-width: 1500px;\n}\n\n.slideshow-container h1 {\n    display:block;\n    padding: 20px 0;\n}\n\n.main-content {\n    max-width: 1000px;\n    margin:auto;\n}\n    \/* Custom Styles *\/\n        \n    \/* Full-Width Template CSS *\/\n        .bodycontent {\n            margin: 0;\n            padding: 0;\n            display: flex;\n            justify-content: center;\n            background-color: #FFFFFF;\n        }\n        \n        .content {\n            width: 90%;\n            max-width: 1200px; \/* Adjust this value as needed *\/\n            margin: 20px;\n        }\n        \n        @media (min-width: 1200px) {\n            .content {\n                width: 80%;\n            }\n    \n        }\n    \n        .slideshowmaincontainer {\n            margin: 0;\n            padding: 0;\n            display: flex;\n            justify-content: center;\n            background-color: #FFFFFF;\n        }\n    \n        .slideshowcontent {\n            width: 100%;\n            max-width: 1500px; \/* Adjust this value as needed *\/\n            margin: 0px;\n        }\n        \n        \n    \/* Headers *\/\n            \n        \/*H2 Header*\/\n        .main-content h2 {\n            text-align: center !important;\n            font-weight: 500 !important;\n            color: #081F5C !important;\n            margin-top: 40px !important;\n            margin-bottom: 30px !important;\n            margin-left: -10px !important;\n            font-size: 28px !important;\n            background-image: linear-gradient(to right, #FFFFFF, #D0E3FF, #FFFFFF);\n            padding-top: 5px;\n            padding-bottom: 5px;\n            padding-left: 10px;\n            border-radius: 5px;\n        }\n    \n        \/*H3 Header*\/\n        .main-content h3 {\n            \/* text-align: left !important; *\/\n            font-weight: 500 !important;\n            color: #081F5C !important;\n            font-size: 22px !important;\n            margin-bottom: 20px !important;\n        }\n    \n        .main-content h3.markets {\n            \/* text-align: left !important; *\/\n            text-align: center;\n            margin-top: 20px;\n            background-image: linear-gradient(to right, #FFFFFF, #D0E3FF, #FFFFFF);\n            color: #081F5C !important;\n        }\n    \n        \/*H4 Header*\/\n        .main-content h4 {\n            font-size: 15px !important;\n            color: black !important;\n            font-weight: bold !important;\n            margin-bottom: 0px !important;\n            margin: 0 0 0 0 !important;\n        }\n    \n        .main-content h4:not(:has(+ p)) {\n        margin-bottom: 16px !important; \n            }\n    \n        \/*H4 Header for the Presentations*\/\n        .presentations h4 {\n            font-size: 16px !important;\n            color: black !important;\n            font-weight: bold !important;\n            margin-bottom: 10px !important;\n            margin: 0 0 10 0 !important;\n        }\n    \n    \n    \/* Links *\/\n            \n        \/*Make all links inherit parent*\/\n        .main-content a {\n            font-weight: inherit !important;\n            color: inherit !important;\n            font-size: inherit !important;\n        }\n    \n        \/*Color back-to-top nav buttons (link)*\/\n        a.back-to-top {\n            color: rgb(130, 130, 130) !important;\n        }\n    \n        \/*Color links in paragraphs in Featured Solutions section*\/\n        .featuredsolutions p a {\n            color: inherit !important;\n            padding: inherit !important;\n        }\n    \n        \/*Color links in paragraphs in presentations section*\/\n        .presentations p a {\n            color: #081F5C !important;\n        }\n    \n        \/*Color links in navigation bar*\/\n        .navigation a {\n            color: white !important;\n            text-decoration: none;\n        }\n    \n    \n    \/* General CSS *\/\n    \n        \/*CSS for back-to-top nav buttons*\/\n        .back-to-top {\n            text-align: center;\n            margin-top: 30px;\n        }\n    \n        \/*CSS for Summary Links*\/\n        summary {\n        color: #081F5C;\n        }\n    \n    \n    \/* Slideshow CSS *\/\n        \n        .slideshow-container {\n            width: 100%;\n            position: relative;\n            margin: auto;\n            border-radius: 10px;\n        }\n    \n        .slides {\n            display: none;\n        }\n    \n        .active {\n            display: block;\n        }\n    \n        .slideimage {\n            width: 100%;\n            border-radius: 10px;\n        }\n    \n        @media (max-width: 1500px) {\n            .slideimage {\n            width: 100%;\n            border-radius: 0px;\n            }\n        }\n    \n    \/*NAVIGATION BAR - TABLE CSS *\/\n    \n        .table {\n          display: flex;\n          border-radius: 5px;\n          overflow: hidden;\n          background-color: white;\n        }\n    \n        .cell {\n          flex: 1;\n          position: relative;\n        }\n    \n        .cell a {\n          display: flex;\n          align-items: center;\n          justify-content: center;\n          padding: 12px;\n          text-align: center;\n          text-decoration: none;\n          font-size: 17px !important;\n          font-weight: bold !important;\n          color: #333;\n          transition: color 0.3s ease;\n          height: 100%;\n          width: 100%;\n        }\n    \n    \/*Highlight on Hover *\/\n        .cell a:hover, .emphasis a:hover {\n          background-color: #081F5C;\n        }\n    \n    \n    \/* Gradient dividers *\/\n        .cell:nth-child(1)::after,\n        .cell:nth-child(2)::before,\n        .cell:nth-child(2)::after,\n        .cell:nth-child(3)::before {\n        content: \"\";\n        position: absolute;\n        top: 10%;\n        width: 1px;\n        height: 80%;\n        background: rgba(255, 255, 255, 0.8);\n        transition: all 0.3s ease;\n        pointer-events: none;\n        }\n    \n        .cell:nth-child(1)::after {\n        right: 0;\n        }\n    \n        .cell:nth-child(2)::before {\n        left: 0;\n        }\n    \n        .cell:nth-child(2)::after {\n        right: 0;\n        }\n    \n        .cell:nth-child(3)::before {\n        left: 0;\n        }\n    \n        \/* Hide dividers when hovered *\/\n        .table:has(.cell:nth-child(1):hover) .cell:nth-child(1)::after,\n        .table:has(.cell:nth-child(1):hover) .cell:nth-child(2)::before,\n        .table:has(.cell:nth-child(2):hover) .cell:nth-child(1)::after,\n        .table:has(.cell:nth-child(2):hover) .cell:nth-child(2)::before,\n        .table:has(.cell:nth-child(2):hover) .cell:nth-child(2)::after,\n        .table:has(.cell:nth-child(2):hover) .cell:nth-child(3)::before,\n        .table:has(.cell:nth-child(3):hover) .cell:nth-child(2)::after,\n        .table:has(.cell:nth-child(3):hover) .cell:nth-child(3)::before {\n        width: 0;\n        background: none;\n        }\n    \n    \n        \/* Shared background for Columns 1 and 2 *\/\n        .shared {\n          background-color: #7096D1;\n        }\n    \n        \/* Unique background for Column 3 *\/\n        .emphasis {\n          background-color: #ff7741;\n        }\n    \n    \n    \/* Scrolling BACK TO TOP *\/\n        \n        .back-to-top-main {\n            text-align: center !important;\n        }\n    \n        .back-to-top-scroll {\n            position: fixed;\n            bottom: 20px;\n            left: 50%;\n            transform: translateX(-50%);\n            display: none;\n            background-color: #d0e3ffcc;\n            backdrop-filter: blur(5px); \n            color: #FAFCFB;\n            padding: 10px 15px;\n            border-radius: 5px;\n            text-decoration: none;\n            text-align: center !important;\n            font-size: 18px;\n        }\n    \n        .back-to-top-scroll:hover {\n            background-color: rgb(235, 248, 252);\n            backdrop-filter: blur(0px); \n            text-align: center !important;\n        }\n    \n        body.scrolled .back-to-top-scroll {\n            display: block;\n            text-align: center !important;\n        }\n    \n        body.at-bottom .back-to-top-scroll {\n            display: none;\n            text-align: center !important;\n        }   \n        \n        \n    \/* Featured Resources FlexBox *\/\n    \n        .flexboxcontainer {\n            display: flex;\n            gap: 30px;\n            padding: 0px;\n            flex-wrap: wrap;\n        }\n    \n        .flexboxcolumn {\n            flex: 1;\n            padding: 10px;\n            \/*background-color: #f0f0f0;\n            border: 1px solid #ccc;*\/\n            min-width: 250px; \/* prevents columns from getting too narrow *\/\n        }\n    \n        .flexboxrounded-box {\n            background-color: #FFFFFF;\n            border: 1px solid;\n            border-color: #68b3ff;\n            border-radius: 10px;       \/* rounded corners *\/\n            padding: 15px;\n            margin-top: 10px;\n            margin-bottom: 15px;\n            font-weight: bold;\n            color: #003366;            \/* optional: dark blue text *\/\n            display: flex;\n            align-items: center;\n            gap: 10px;\n    }\n    \n        .flexboxgraphics {\n            max-width: 120px;\n            max-height: 80px;\n            width: auto;\n            height: auto;\n        }\n    \n    \/* Responsive Design. *\/\n            @media (max-width: 600px) {\n    \n            .slideimage {\n                width: 100%;\n                border-radius: 0px;\n            }\n    \n            .flexboxcontainer {\n            flex-direction: column;\n            gap: 0px;\n            }\n    \n            .slideimage {\n                width: 100%;\n                border-radius: 0px;\n            }\n        }\n            \n        \n    <\/style>\n<p><a id=\"top\"><\/a><\/p>\n<div class=\"slideshowmaincontainer\">\n<div class=\"slideshowcontent\">\n<div class=\"slideshow-container\">\n<h1 style=\"margin-left: 20px;\">Restek at NACRW 2025<\/h1>\n<div class=\"slides\"><a href=\"https:\/\/restek.com\/articles\/improve-productivity-for-pesticides-analysis-with-resprep-fl-carboprep-plus-spe\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"slideimage\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/header-GNOT4518-NACRW-2025-pesticides-slide-01.jpg\" alt=\"\" title=\"-\"><\/a><\/div>\n<div class=\"slides\"><a href=\"https:\/\/restek.com\/articles\/improve-productivity-for-pesticides-analysis-with-resprep-fl-carboprep-plus-spe\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"slideimage\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/header-GNOT4518-NACRW-2025-SPE-cartridges-slide-02.jpg\" alt=\"\" title=\"-\"><\/a><\/div>\n<div class=\"slides\"><a href=\"https:\/\/restek.com\/articles\/a-two-in-one-solution-for-pfas-spe-sample-preparation\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"slideimage\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/header-GNOT4518-NACRW-2025-PFAS-in-food-slide-03.jpg\" alt=\"\" title=\"-\"><\/a><\/div>\n<div class=\"slides\"><a href=\"https:\/\/restek.com\/articles\/a-two-in-one-solution-for-pfas-spe-sample-preparation\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"slideimage\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/header-GNOT4518-NACRW-2025-filter-aid-SPE-cartridges-slide-04.jpg\" alt=\"\" title=\"-\"><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"bodycontent\">\n<div class=\"content\"><!--SLIDESHOW BELOW-->\n<p>\n<script> \/\/Script that autoplays the slideshow\n        let slideIndex = 0;\n        showSlides();\n    \n        function showSlides() {\n            let slides = document.getElementsByClassName(\"slides\");\n            for (let i = 0; i < slides.length; i++) {\n                slides[i].classList.remove(\"active\");\n            }\n            slideIndex++;\n            if (slideIndex > slides.length) {slideIndex = 1}\n            slides[slideIndex-1].classList.add(\"active\");\n            setTimeout(showSlides, 4500); \/\/ Change this to adjust how long each slide displays. Default is 4500 (4.5 seconds)\n        }\n    <\/script>\n<script> \/\/Script that automatically opens all links in a new tab -- excluding the classes \"no-new-page\", \"back-to-top\", \"cell-content\", \"back-to-top-scroll\".\n        document.querySelectorAll('a').forEach(link => {\n            if (!link.classList.contains('no-new-page') && !link.classList.contains('back-to-top') && !link.classList.contains('cell-content') && !link.classList.contains('back-to-top-scroll')) {\n                link.setAttribute('target', '_blank');\n                link.setAttribute('rel', 'noopener noreferrer');\n            }\n        });\n    <\/script>\n<script>\n        window.addEventListener('scroll', function() {\n            const scrollPosition = window.scrollY;\n            const windowHeight = window.innerHeight;\n            const triggerElement = document.getElementById('top-div');\n            const targetDiv = document.getElementById('bottom-div');\n            const triggerElementPosition = triggerElement.offsetTop;\n            const targetDivPosition = targetDiv.offsetTop;\n    \n            if (scrollPosition > triggerElementPosition) {\n                document.body.classList.add('scrolled');\n            } else {\n                document.body.classList.remove('scrolled');\n            }\n    \n            if (scrollPosition + windowHeight >= targetDivPosition) {\n                document.body.classList.add('at-bottom');\n            } else {\n                document.body.classList.remove('at-bottom');\n            }\n        });\n    <\/script>\n<\/p>\n<div class=\"main-content\"><!--INTRODUCTION PARAGRAPHS BELOW HERE AND ABOVE NAVIGATION TABLE IF NEEDED--> <!--NAVIGATION TABLE-->\n<div class=\"navigation\">\n<div class=\"table\">\n<div class=\"cell shared\"><a href=\"#presentations\">Presentations<\/a><\/div>\n<div class=\"cell shared\"><a href=\"https:\/\/restek.com\/contact-us\" target=\"_blank\" rel=\"noopener\">Speak to an Expert<\/a><\/div>\n<\/div>\n<\/div>\n<!--CODE FOR FLOATING BACK-TO-TOP BUTTON-->\n<div class=\"back-to-top-scroll-main\"><a href=\"#top\" class=\"back-to-top-scroll\"><span style=\"text-align: center;\">&uarr;<br>Back to Top<\/span><\/a><\/div>\n<div id=\"top-div\"><\/div>\n<!-- TRIGGER FOR FLOATING BACK-TO-TOP BUTTON TO APPEAR --> <!--FEATURED SOLUTIONS SECTION-->\n<div class=\"featuredsolutions\">\n<p><a id=\"solutions\"><\/a><\/p>\n<!--ANCHOR LINK-->\n<h2>Featured Solutions<\/h2>\n<div class=\"flexboxcontainer\">\n<div class=\"flexboxcolumn\">\n<h3 class=\"markets\">PFAS<\/h3>\n<h4><a href=\"https:\/\/restek.com\/application-hub\/pfas-analysis\" target=\"_blank\" rel=\"noopener\">Your Partner in PFAS Analysis<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/application-hub\/pfas-analysis\" target=\"_blank\" rel=\"noopener\">Access app notes, webinars, chromatograms, and more on our dedicated PFAS portal.&rarr;<\/a><\/p>\n<h4><a href=\"https:\/\/restek.com\/articles\/a-two-in-one-solution-for-pfas-spe-sample-preparation\" target=\"_blank\" rel=\"noopener\">Streamline Your Sample Prep with Dual-Bed Resprep PFAS Cartridges<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/rticles\/a-two-in-one-solution-for-pfas-spe-sample-preparation\" target=\"_blank\" rel=\"noopener\">A convenient, two-in-one solution designed specifically for PFAS analysis.&rarr;<\/a><\/p>\n<div class=\"flexboxrounded-box\"><img decoding=\"async\" class=\"flexboxgraphics\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/teaser-product-GNOT4518-28931.png\" alt=\"SPE Cartridge\" title=\"-\"> <a href=\"https:\/\/restek.com\/p\/28931\" target=\"_blank\" rel=\"noopener\">Speed Up PFAS Sample Prep with Resprep PFAS SPE Cartridge with Filter Aid&rarr;<\/a><\/div>\n<h4><a href=\"https:\/\/restek.com\/pages\/lab-supplies-for-pfas-analysis\" target=\"_blank\" rel=\"noopener\">Lab Supplies for PFAS Analysis<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/pages\/lab-supplies-for-pfas-analysis\" target=\"_blank\" rel=\"noopener\">A method-based reference to lab supplies for PFAS testing.&rarr;<\/a><\/p>\n<h4><a href=\"https:\/\/discover.restek.com\/wp-content\/uploads\/GNSS4380.pdf\">Advanced Analytical Solutions for PFAS.<\/a><\/h4>\n<p><a href=\"https:\/\/discover.restek.com\/wp-content\/uploads\/GNSS4380.pdf\">Browse columns, reference standards, sample prep products, and more.&rarr;<\/a><\/p>\n<div class=\"flexboxrounded-box\"><img decoding=\"async\" class=\"flexboxgraphics\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/teaser-product-reference-standards-furan-alkylfurans.png\" alt=\"PFAS reference standard ampul\" title=\"-\"> <a href=\"https:\/\/restek.com\/search\/reference-standards\/_\/N-1972099676+1849910702?Ns=restekProduct.x_productBadge%7C0\" target=\"_blank\" rel=\"noopener\">Check Out Our Growing Selection of PFAS Reference Standards&rarr;<\/a><\/div>\n<h4><a href=\"https:\/\/restek.com\/p\/9175352-T\" target=\"_blank\" rel=\"noopener\">Enhancing Short Chain Selectivity for PFAS in Food<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/p\/9175352-T\" target=\"_blank\" rel=\"noopener\">Ultra IBD columns provide strong retention, good separation, and high selectivity of ultrashort-chain PFAS.&rarr;<\/a><\/p>\n<\/div>\n<div class=\"flexboxcolumn\">\n<h3 class=\"markets\">Pesticides<\/h3>\n<h4><a href=\"https:\/\/restek.com\/application-hub\/pesticides-food-gc\" target=\"_blank\" rel=\"noopener\">Improve Productivity for Pesticides Analysis of Food<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/pplication-hub\/pesticides-food-gc\" target=\"_blank\" rel=\"noopener\">Rely on our experience to help you increase certainty and sample throughput.&rarr;<\/a><\/p>\n<h4><a href=\"https:\/\/restek.com\/articles\/improve-productivity-for-pesticides-analysis-with-resprep-fl-carboprep-plus-spe\" target=\"_blank\" rel=\"noopener\">Improve Productivity for Pesticides Analysis with Resprep FL + CarboPrep Plus SPE<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/articles\/improve-productivity-for-pesticides-analysis-with-resprep-fl-carboprep-plus-spe\" target=\"_blank\" rel=\"noopener\">Cleaner extracts mean less GC downtime and &gt;10x higher sample throughput.&rarr;<\/a><\/p>\n<div class=\"flexboxrounded-box\"><img decoding=\"async\" class=\"flexboxgraphics\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/teaser-product-GNOT4518-28899.png\" alt=\"SPE cartridge\" title=\"-\"> <a href=\"https:\/\/restek.com\/p\/28899\" target=\"_blank\" rel=\"noopener\">Resprep FL + CarboPrep Plus SPE Cartridges&rarr;<\/a><\/div>\n<h3 class=\"markets\">Phthalates and More<\/h3>\n<h4><a href=\"https:\/\/restek.com\/chromablography\/analyzing-phthalates-using-an-inert-lc-column\" target=\"_blank\" rel=\"noopener\">Analyzing Phthalates Using an Inert LC Column<\/a><\/h4>\n<p><a href=\"https:\/\/restek.com\/chromablography\/analyzing-phthalates-using-an-inert-lc-column\" target=\"_blank\" rel=\"noopener\">See how LC-MS\/MS method development was explored for phthalic acid and six widely used phthalates.&rarr;<\/a><\/p>\n<div class=\"flexboxrounded-box\"><img decoding=\"async\" class=\"flexboxgraphics\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/teaser-product-ez-gc-lc-modelers.jpg\" alt=\"\" title=\"-\"> <a href=\"https:\/\/ez.restek.com\/\" target=\"_blank\" rel=\"noopener\">Simplify Your LC &amp; GC Method Development with Our Free Software Suites&rarr;<\/a><\/div>\n<h4><a href=\"https:\/\/discover.restek.com\/wp-content\/uploads\/GNSS3999.pdf\">Eliminate Hardware Effects from Your LC Column<\/a><\/h4>\n<p><a href=\"https:\/\/discover.restek.com\/wp-content\/uploads\/GNSS3999.pdf\">See how Restek&rsquo;s Inert LC columns can help ensure your chromatography is the best it can be.&rarr;<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<!--PRESENTATION SECTION-->\n<div class=\"presentations\">\n<p><a id=\"presentations\"><\/a><\/p>\n<!--ANCHOR LINK-->\n<h2>Presentations<\/h2>\n<h3>Posters<\/h3>\n<h4>Integrating Ultrashort-Chain Compounds into Comprehensive PFAS Profiling in Ready-to-Feed Liquid Milk<\/h4>\n<p><strong>Monday, July 28, 3:10-3:40 p.m. &amp; Tuesday, July 29, 11:00 a.m. &#8211; 12:00 p.m.<\/strong> <br><strong>Author:<\/strong> Shun-Hsin Liang, PhD<\/p>\n<p><a href=\"https:\/\/discover.restek.com\/wp-content\/uploads\/SHun_Hsin_NACRWposter.pdf\"><strong>Download<\/strong><\/a><\/p>\n<details>\n<summary>View Details<\/summary>\n<p>Ultrashort-chain (USC) per- and polyfluoroalkyl substances (PFAS) are highly polar compounds with carbon chains shorter than C4. Their widespread occurrence in aquatic environments has raised growing concerns about potential contamination in food products, particularly ready-to-feed liquid milk. To fully assess PFAS contamination, it is essential to include USC compounds in PFAS analysis of milk samples. The high polarity of USC PFAS poses a significant challenge for standard chromatographic practices in PFAS analysis, primarily due to insufficient chromatographic retention. This study introduces a simple and reliable workflow for the simultaneous analysis of C1 to C14 perfluoroalkyl carboxylic and sulfonic acids, along with other PFAS classes, in various liquid milk matrices. The chromatographic analysis was performed using an inert-coated, polar-embedded, reversed-phase LC column. Method verification was conducted using three different milk types&mdash;dairy milk, almond milk, and infant formula&mdash;to demonstrate the workflow&rsquo;s applicability for measuring 41 PFAS in diverse milk samples. A sample preparation procedure involving protein precipitation, extractant drying, and reconstitution was optimized for effective extraction and quantification of all analytes. This streamlined procedure was evaluated by accuracy and precision analysis at five fortification levels, ranging from 0.01 to 0.25 &micro;g\/kg, equivalent to 10 to 250 ng\/L in the final sample solution for LC-MS\/MS analysis. Eighteen isotopes, serving as quantitative internal standards, were added to the sample before extraction to ensure accurate quantification by correcting variations in sample preparation and matrix effect. Calibration ranges varied among different analytes, spanning from 4&ndash;2500 ng\/L. All analytes exhibited recovery values within 30% of the nominal concentration across all fortification levels. Satisfactory method precision was demonstrated with %RSD values below 15%. The established workflow was then applied to the analysis of additional milk samples collected from various grocery stores, providing a comprehensive profile of PFAS contamination across a diverse range of milk matrices.<\/p>\n<\/details>\n<p>&nbsp;<\/p>\n<h3>Vendor Seminars<\/h3>\n<h4>From Complexity to Clarity: Confident Method Development for PFAS and Chemical Residues<\/h4>\n<p><strong>Tuesday, July 29, 12:15-1:15 p.m. <\/strong> <br><strong>Presenter:<\/strong> Ramkumar Dhandapani, PhD <br><strong>Authors:<\/strong> Ramkumar Dhandapani, PhD, Shun-Hsin Liang, PhD, Alexis Shelow<\/p>\n<p><a href=\"https:\/\/discover.restek.com\/wp-content\/uploads\/NACRW-2025-Presentation.pdf\"><strong>Download<\/strong><\/a><\/p>\n<details>\n<summary>View Details<\/summary>\n<p>Between time constraints, sample turnover demands, cost pressures, and evolving regulations, developing and optimizing testing methods for PFAS (including ultrashort-chain compounds) and chemical residues is increasingly complex. This session will explore the challenges of building accurate, reliable methods for these critical compound classes. Attendees will gain practical insights into simplifying method development through purpose-built tools, enhanced SPE workflows, and innovative inert LC and LPGC column formats that support higher throughput and consistent performance.<\/p>\n<p>Anyone looking to improve laboratory efficiency in PFAS and chemical residue analysis will benefit from attending this session.<\/p>\n<\/details>\n<p>&nbsp;<\/p>\n<h3>Orals<\/h3>\n<h4>From Sample to Solution: Advancing PFAS Matrix Cleanup with Sample Preparation<\/h4>\n<p><strong>Tuesday, July 29, 2:30-2:50 p.m., O-20<\/strong> <br><strong>Presenter:<\/strong> Alexis Shelow <br><strong>Authors:<\/strong> Alexis Shelow, Jason Hoisington, and Kevin Albertson<\/p>\n<details>\n<summary>View Details<\/summary>\n<p>Quantifying PFAS in complex food matrices presents a significant analytical challenge due to matrix interferences and the need for highly sensitive detection limits, necessitating robust sample preparation to ensure accurate and reliable results. The performance of the PFAS Triple Bed Cartridge with integrated Filter Aid was evaluated across diverse food matrices, yielding high recovery rates, efficient matrix cleanup and ensuring reliable PFAS quantitation. These findings underscore the importance of robust sample preparatory techniques when addressing analytical complexities associated with PFAS analysis for both food and environmental safety laboratories.<\/p>\n<\/details>\n<\/div>\n<div id=\"bottom-div\"><!-- Trigger for back to top button to disappear -->\n<p class=\"back-to-top\"><a href=\"#top\" class=\"back-to-top\">&uarr;<br>Back to Top<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<!--DIV to close content--><\/div>\n<!--DIV to close bodycontent-->\n","protected":false},"excerpt":{"rendered":"<p>Get access to everything we shared at NACRW 2025!<\/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":""},"categories":[796],"tags":[],"industries-application":[],"post-badge":[],"resource-type":[],"product-library":[],"resource-technique":[],"hf_cat_post":[2658],"ppma_author":[414],"class_list":["post-61920","post","type-post","status-publish","format-standard","hentry","category-evenements"],"acf":[],"taxonomy_info":{"category":[{"value":796,"label":"Ev\u00e9nements"}]},"featured_image_src_large":false,"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/ja\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":796,"name":"Ev\u00e9nements","slug":"evenements","term_group":0,"term_taxonomy_id":796,"taxonomy":"category","description":"","parent":0,"count":13,"filter":"raw","cat_ID":796,"category_count":13,"category_description":"","cat_name":"Ev\u00e9nements","category_nicename":"evenements","category_parent":0}],"tag_info":false,"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"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/posts\/61920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/comments?post=61920"}],"version-history":[{"count":6,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/posts\/61920\/revisions"}],"predecessor-version":[{"id":62026,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/posts\/61920\/revisions\/62026"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/media?parent=61920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/categories?post=61920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/tags?post=61920"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/industries-application?post=61920"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/post-badge?post=61920"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/resource-type?post=61920"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/product-library?post=61920"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/resource-technique?post=61920"},{"taxonomy":"hf_cat_post","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/hf_cat_post?post=61920"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/ja\/wp-json\/wp\/v2\/ppma_author?post=61920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}