{"id":43442,"date":"2025-10-03T21:07:46","date_gmt":"2025-10-03T21:07:46","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/pfas-analysis-by-us-epa-method-533-for-drinking-water\/"},"modified":"2026-03-30T20:22:03","modified_gmt":"2026-03-30T20:22:03","slug":"pfas-analysis-by-us-epa-method-533-for-drinking-water","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/zh-hans\/articles\/evar4285\/pfas-analysis-by-us-epa-method-533-for-drinking-water","title":{"rendered":"PFAS Analysis by U.S. EPA Method 533 for Drinking Water"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li><strong>Sample Matrix:<\/strong> drinking water<\/li>\n\n\n\n<li><strong>Sample Preparation: <\/strong>isotope dilution anion exchange solid-phase extraction<\/li>\n\n\n\n<li><strong>Detection Technique: <\/strong>LC-MS\/MS<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Determination of Per- and Polyfluorinated Alkyl Substances in Drinking Water by Isotope Dilution Anion Exchange Solid Phase Extraction and Liquid Chromatography\/Tandem Mass Spectrometry<\/h2>\n\n\n\n<p>U.S. EPA Method 533 is used for the analysis of 25 PFAS in drinking water. It combines solid-phase extraction sample preparation using weak anion exchange (WAX) cartridges with LC-MS\/MS analysis on a C18 column. The method allows flexibility in some aspects, such as sample volume, LC column, LC conditions, and detector conditions, but changes to sample preservation, quality control requirements, and the extraction procedure are prohibited. In addition, the ratio of sorbent mass to aqueous sample volume cannot be reduced. The full analyte list and recommended products for PFAS analysis in drinking water by Method 533 are provided below. In addition, you can register and directly <a href=\"https:\/\/explore.restek.com\/PFAS-Guides\" target=\"_blank\" rel=\"noreferrer noopener\">compare analyte lists and matrices across PFAS analysis methods here<\/a> or visit <a href=\"https:\/\/discover.restek.com\/pfas-analysis\/\" data-type=\"link\" data-id=\"https:\/\/discover.restek.com\/pfas-analysis\/\">www.restek.com\/PFAS<\/a> to explore our technical resources for PFAS analysis.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.epa.gov\/sites\/default\/files\/2019-12\/documents\/method-533-815b19020.pdf\" style=\"background-color:#015e9a;padding-right:50px;padding-left:50px\" target=\"_blank\" rel=\"noreferrer noopener\">Access Method<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Analyte List for U.S. EPA Method 533 for PFAS Analysis<\/h3>\n\n\n\n<p>PFAS acronyms, compound names, and CAS numbers vary across methods and guidelines, and they also depend on compound form (e.g., neutral vs. salt). The following list uses standardized terminology to allow easy comparison across the methods and guidelines in our <a href=\"https:\/\/explore.restek.com\/PFAS-Guides\" target=\"_blank\" rel=\"noreferrer noopener\">comprehensive guide<\/a>. Please refer to U.S. EPA Method 533 for method-specific nomenclature.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Acronym<\/strong><\/td><td><strong>Compound Name<\/strong><\/td><td><strong>CAS#<\/strong><\/td><\/tr><tr><td>PFBS<\/td><td>Perfluoro-1-butanesulfonic acid<\/td><td>375-73-5<\/td><\/tr><tr><td>PFDA<\/td><td>Perfluorodecanoic acid<\/td><td>335-76-2<\/td><\/tr><tr><td>PFDoA<\/td><td>Perfluorododecanoic acid<\/td><td>307-55-1<\/td><\/tr><tr><td>PFHpA<\/td><td>Perfluoroheptanoic acid<\/td><td>375-85-9<\/td><\/tr><tr><td>PFHxS<\/td><td>Perfluoro-1-hexanesulfonic acid<\/td><td>355-46-4<\/td><\/tr><tr><td>PFHxA<\/td><td>Perfluorohexanoic acid<\/td><td>307-24-4<\/td><\/tr><tr><td>PFNA<\/td><td>Perfluorononanoic acid<\/td><td>375-95-1<\/td><\/tr><tr><td>PFOS<\/td><td>Perfluorooctanesulfonic acid<\/td><td>1763-23-1<\/td><\/tr><tr><td>PFOA<\/td><td>Perfluorooctanoic acid<\/td><td>335-67-1<\/td><\/tr><tr><td>PFUnA<\/td><td>Perfluoroundecanoic acid<\/td><td>2058-94-8<\/td><\/tr><tr><td>HFPO-DA, GenX<\/td><td>Hexafluoropropylene oxide dimer acid<\/td><td>13252-13-6<\/td><\/tr><tr><td>PFBA<\/td><td>Perfluorobutanoic acid<\/td><td>375-22-4<\/td><\/tr><tr><td>PFPeA<\/td><td>Perfluoropentanoic acid<\/td><td>2706-90-3<\/td><\/tr><tr><td>PFHpS<\/td><td>Perfluoro-1-heptanesulfonic acid<\/td><td>375-92-8<\/td><\/tr><tr><td>PFPeS<\/td><td>Perfluoro-1-pentanesulfonic acid<\/td><td>2706-91-4<\/td><\/tr><tr><td>4:2 FTS<\/td><td>1<em>H<\/em>,1<em>H<\/em>,2<em>H<\/em>,2<em>H<\/em>-Perfluorohexane sulfonic acid<\/td><td>757124-72-4<\/td><\/tr><tr><td>6:2 FTS<\/td><td>1<em>H<\/em>,1<em>H<\/em>,2<em>H<\/em>,2<em>H<\/em>-Perfluorooctane sulfonic acid<\/td><td>27619-97-2<\/td><\/tr><tr><td>8:2 FTS<\/td><td>1<em>H<\/em>,1<em>H<\/em>,2<em>H<\/em>,2<em>H<\/em>-Perfluorodecane sulfonic acid<\/td><td>39108-34-4<\/td><\/tr><tr><td>9Cl-PF3ONS<\/td><td>9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (F-53B Major)<\/td><td>756426-58-1<\/td><\/tr><tr><td>11Cl-PF3OUdS<\/td><td>11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor)<\/td><td>763051-92-9<\/td><\/tr><tr><td>ADONA<\/td><td>4,8-Dioxa-3<em>H<\/em>-perfluorononanoic acid<\/td><td>919005-14-4<\/td><\/tr><tr><td>PFEESA<\/td><td>Perfluoro(2-ethoxyethane)sulfonic acid<\/td><td>113507-82-7<\/td><\/tr><tr><td>NFDHA<\/td><td>Nonafluoro-3,6-dioxaheptanoic acid<\/td><td>151772-58-6<\/td><\/tr><tr><td>PFMPA<\/td><td>Perfluoro-3-methoxypropanoic acid<\/td><td>377-73-1<\/td><\/tr><tr><td>PFMBA<\/td><td>Perfluoro-4-methoxybutanoic acid<\/td><td>863090-89-5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/explore.restek.com\/PFAS-Guides\" style=\"background-color:#015e9a;padding-right:50px;padding-left:50px\" target=\"_blank\" rel=\"noreferrer noopener\">Want to compare analyte lists? <em>Check out our guide!<\/em><\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Recommended Products for U.S. EPA Method 533 for PFAS Analysis<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Analytical LC Columns:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/9304A52\">                                Catalog No. 9304A52                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Raptor C18, 2.7 \u00b5m, 50 x 2.1 mm HPLC Column<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/9304A52\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/9634252\">                                Catalog No. 9634252                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Force C18, 1.8 \u00b5m, 50 x 2.1 mm LC Column<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/9634252\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Delay Columns:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/27854\">                                Catalog No. 27854                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">PFAS Delay Column, 5 \u00b5m, 50 x 2.1 mm HPLC Column<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/27854\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>PFAS delay column: 5 \u00b5m, 50 x 3.0 mm (cat.# 580959 [custom product])<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Guard Columns:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/25809\">                                Catalog No. 25809                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">UltraShield UHPLC PreColumn Filter, 0.2 \u00b5m Frit, ea.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/25809\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/25808\">                                Catalog No. 25808                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">EXP Direct Connect Holder for EXP Guard Cartridges, Includes Fitting &amp; Ferrules<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/25808\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/9304A0252\">                                Catalog No. 9304A0252                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Raptor C18 EXP Guard Column Cartridge, 2.7 \u00b5m, 5 x 2.1 mm, 3-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/9304A0252\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Standards:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/30840\">                                Catalog No. 30840                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">PFAS EPA Method 533 Analyte Primary Dilution Standard (PDS) 2 \u00b5g\/mL, Methanol (1 mM NaOH)\/2-Propanol (98:2), 1 mL\/ampul<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/30840\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/30733\">                                Catalog No. 30733                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">PFAS 24 Calibration Standard, 1 \u00b5g\/mL, Methanol (1 mM KOH), 1 mL\/ampul<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/30733\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/30734\">                                Catalog No. 30734                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">PFAS 28 Calibration Standard, 1 \u00b5g\/mL, Methanol (1 mM KOH), 1 mL\/ampul<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/30734\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Sample Prep:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28268\">                                Catalog No. 28268                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Resprep Polymeric SPE Cartridge, WAX, 6 mL\/500 mg, 30 \u03bcm, 30-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28268\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28292\">                                Catalog No. 28292                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Resprep Polymeric SPE Cartridge, WAX, 6 mL\/200 mg, 30 \u03bcm, 30-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28292\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Sample Reservoirs:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/26015\">                                Catalog No. 26015                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">SPE Empty Tubes, Sample Reservoir, 75 mL, Polypropylene, 12-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/26015\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/26007\">                                Catalog No. 26007                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">SPE Connector, 1, 3, 6, 10, or 15 mL, Polypropylene, 15-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/26007\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Vacuum Manifolds:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28299-VM\">                                Catalog No. 28299-VM                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Resprep QR-24 Vacuum Manifold<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28299-VM\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28298-VM\">                                Catalog No. 28298-VM                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Resprep QR-12 Vacuum Manifold<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28298-VM\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Vacuum Pumps:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/27426\">                                Catalog No. 27426                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Chemker 300 PTFE Vacuum Pump, 20 L\/min, AC110 V, 60 Hz<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/27426\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/27427\">                                Catalog No. 27427                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Chemker 300 PTFE Vacuum Pump, 18 L\/min, AC220 V, 50 Hz<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/27427\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">General Lab Supplies:<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23243\">                                Catalog No. 23243                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Limited-Volume Screw-Thread Polypropylene Vials, 9 mm, 700 \u00b5L, 12 x 32 mm, 100-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23243\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23246\">                                Catalog No. 23246                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Limited-Volume Screw-Thread Polypropylene Vials, 9 mm, 700 \u00b5L, 12 x 32 mm, 1000-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23246\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23244\">                                Catalog No. 23244                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">2.0 mL, 9 mm Solid-Top Polyethylene Caps, Screw-Thread, 10 mil thick membrane, Clear, 100-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23244\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23247\">                                Catalog No. 23247                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">2.0 mL, 9 mm Solid-Top Polyethylene Caps, Screw-Thread, 10 mil thick membrane, Clear, 1000-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/23247\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/25846\">                                Catalog No. 25846                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Empty Centrifuge Tubes, 50 mL, Polypropylene w\/Cap, 50-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/25846\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28290\">                                Catalog No. 28290                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Empty Centrifuge Tubes, 50 mL, Polypropylene w\/Cap, 500-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/28290\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/22775\">                                Catalog No. 22775                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Norm-Ject Plastic Syringe, 10 mL Luer Lock Tip, 100-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/22775\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/22774\">                                Catalog No. 22774                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Norm-Ject Plastic Syringe, 5 mL Luer Lock Tip, 100-pk.<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.restek.com\/p\/22774\">\u67e5\u770b\u4ea7\u54c1<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Discover More Solutions for PFAS Analysis!<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns43442_99d1b4-4c{gap:var(--global-kb-gap-md, 2rem);justify-content:center;align-items:center;}.kt-btns43442_99d1b4-4c .kt-button{font-weight:normal;font-style:normal;}.kt-btns43442_99d1b4-4c .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns43442_99d1b4-4c .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns43442_99d1b4-4c .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43442_99d1b4-4c .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns43442_99d1b4-4c .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns43442_99d1b4-4c .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43442_99d1b4-4c .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns43442_99d1b4-4c\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn43442_17ee11-71.kb-button{width:initial;}<\/style><a class=\"kb-button kt-button button kb-btn43442_17ee11-71 kt-btn-size-large kt-btn-width-type-full kb-btn-global-fill  kt-btn-has-text-true kt-btn-has-svg-false  wp-block-kadence-singlebtn\" href=\"https:\/\/discover.restek.com\/articles\/evar3552\/guide-to-pfas-testing-methods\"><span class=\"kt-btn-inner-text\">Access Other PFAS Methods<\/span><\/a>\n\n<style>ul.menu .wp-block-kadence-advancedbtn .kb-btn43442_ce675f-fd.kb-button{width:initial;}<\/style><a class=\"kb-button kt-button button kb-btn43442_ce675f-fd kt-btn-size-large kt-btn-width-type-full kb-btn-global-fill  kt-btn-has-text-true kt-btn-has-svg-false  wp-block-kadence-singlebtn\" href=\"https:\/\/discover.restek.com\/articles\/EVAR3498\/lab-supplies-for-pfas-analysis\/\"><span class=\"kt-btn-inner-text\">Compare Product Lists<\/span><\/a>\n\n<style>ul.menu .wp-block-kadence-advancedbtn .kb-btn43442_fa2f75-94.kb-button{width:initial;}<\/style><a class=\"kb-button kt-button button kb-btn43442_fa2f75-94 kt-btn-size-large kt-btn-width-type-full kb-btn-global-fill  kt-btn-has-text-true kt-btn-has-svg-false  wp-block-kadence-singlebtn\" href=\"https:\/\/discover.restek.com\/pfas-analysis\/\"><span class=\"kt-btn-inner-text\">Explore More Technical Resources<\/span><\/a><\/div>\n\n\n\n<div class=\"wp-block-group hub-fullwidth-container\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><style>.kadence-column43442_9b9e33-07 > .kt-inside-inner-col,.kadence-column43442_9b9e33-07 > .kt-inside-inner-col:before{border-top-left-radius:16px;border-top-right-radius:16px;border-bottom-right-radius:16px;border-bottom-left-radius:16px;}.kadence-column43442_9b9e33-07 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43442_9b9e33-07 > .kt-inside-inner-col{flex-direction:column;}.kadence-column43442_9b9e33-07 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column43442_9b9e33-07 > .kt-inside-inner-col{background-color:var(--global-palette2, #2B6CB0);background-image:url('https:\/\/discover.restek.com\/wp-content\/uploads\/GNLP4243-ad-ezlc-for-PFAS-desktop-1.jpg');background-size:cover;background-position:50% 0%;background-attachment:scroll;background-repeat:no-repeat;}.kadence-column43442_9b9e33-07 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43442_9b9e33-07{position:relative;}.kadence-column43442_9b9e33-07, .kt-inside-inner-col > .kadence-column43442_9b9e33-07:not(.specificity){margin-top:45px;margin-bottom:10px;}@media all and (max-width: 1024px){.kadence-column43442_9b9e33-07 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column43442_9b9e33-07 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43442_9b9e33-07 kvs-sm-false hub-guttered-centered-container\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id43442_f74958-36 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id43442_f74958-36 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id43442_f74958-36 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:48px;padding-right:48px;padding-bottom:48px;padding-left:48px;grid-template-columns:minmax(0, calc(65% - ((var(--global-kb-gap-md, 2rem) * 1 )\/2)))minmax(0, calc(35% - ((var(--global-kb-gap-md, 2rem) * 1 )\/2)));}.kb-row-layout-id43442_f74958-36 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id43442_f74958-36 > .kt-row-column-wrap{grid-template-columns:minmax(0, 2fr) minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id43442_f74958-36 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id43442_f74958-36 alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-left-golden kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column43442_27070b-d3 > .kt-inside-inner-col{display:flex;}.kadence-column43442_27070b-d3 > .kt-inside-inner-col,.kadence-column43442_27070b-d3 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column43442_27070b-d3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43442_27070b-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43442_27070b-d3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kt-row-column-wrap > .kadence-column43442_27070b-d3{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_27070b-d3{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_27070b-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43442_27070b-d3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43442_27070b-d3{position:relative;}@media all and (max-width: 1024px){.kt-row-column-wrap > .kadence-column43442_27070b-d3{align-self:center;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_27070b-d3{align-self:auto;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_27070b-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 1024px){.kadence-column43442_27070b-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kt-row-column-wrap > .kadence-column43442_27070b-d3{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_27070b-d3{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_27070b-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43442_27070b-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43442_27070b-d3\"><div class=\"kt-inside-inner-col\"><\/div><\/div>\n\n\n<style>.kadence-column43442_591b13-58 > .kt-inside-inner-col,.kadence-column43442_591b13-58 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column43442_591b13-58 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43442_591b13-58 > .kt-inside-inner-col{flex-direction:column;}.kadence-column43442_591b13-58 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column43442_591b13-58 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43442_591b13-58{position:relative;}@media all and (max-width: 1024px){.kadence-column43442_591b13-58 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column43442_591b13-58 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43442_591b13-58\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18, .wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18[data-kb-block=\"kb-adv-heading43442_cd350e-18\"]{text-align:center;font-size:48px;line-height:54px;font-weight:400;font-style:normal;font-family:Inter;text-transform:none;}.wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18[data-kb-block=\"kb-adv-heading43442_cd350e-18\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18[data-kb-block=\"kb-adv-heading43442_cd350e-18\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18, .wp-block-kadence-advancedheading.kt-adv-heading43442_cd350e-18[data-kb-block=\"kb-adv-heading43442_cd350e-18\"]{font-size:36px;}}<\/style>\n<h2 class=\"kt-adv-heading43442_cd350e-18 wp-block-kadence-advancedheading has-theme-palette-9-color has-text-color\" data-kb-block=\"kb-adv-heading43442_cd350e-18\">Start Saving <br>Time Today<\/h2>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c, .wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c[data-kb-block=\"kb-adv-heading43442_c61927-7c\"]{text-align:center;font-size:20px;font-weight:400;font-style:normal;font-family:'Open Sans';color:#dee2e6;}.wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c[data-kb-block=\"kb-adv-heading43442_c61927-7c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c[data-kb-block=\"kb-adv-heading43442_c61927-7c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c, .wp-block-kadence-advancedheading.kt-adv-heading43442_c61927-7c[data-kb-block=\"kb-adv-heading43442_c61927-7c\"]{font-size:16px;}}<\/style>\n<p class=\"kt-adv-heading43442_c61927-7c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading43442_c61927-7c\">Develop PFAS Methods in Minutes with our Pro&nbsp;<em>EZ<\/em>LC Chromatogram Modeler<\/p>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns43442_9d1686-87{gap:var(--global-kb-gap-xs, 0.5rem );justify-content:center;align-items:center;}.kt-btns43442_9d1686-87 .kt-button{font-weight:normal;font-style:normal;}.kt-btns43442_9d1686-87 .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns43442_9d1686-87 .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns43442_9d1686-87 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43442_9d1686-87 .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns43442_9d1686-87 .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns43442_9d1686-87 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43442_9d1686-87 .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns43442_9d1686-87\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn43442_b9a060-4d.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn43442_b9a060-4d.kb-button{color:#0c115b;background:var(--global-palette9, #ffffff);font-size:16px;line-height:20px;font-family:'Open Sans';font-weight:600;border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-right-radius:8px;border-bottom-left-radius:8px;border-top:1px solid #015e9a;border-right:1px solid #015e9a;border-bottom:1px solid #015e9a;border-left:1px solid #015e9a;padding-top:12px;padding-right:16px;padding-bottom:12px;padding-left:16px;}.kb-btn43442_b9a060-4d.kb-button .kb-svg-icon-wrap{font-size:16px;--kb-button-icon-size:16px;}.wp-block-kadence-advancedbtn .kb-btn43442_b9a060-4d.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn43442_b9a060-4d.kb-button:focus{color:#0c115b;background:var(--global-palette9, #ffffff);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn43442_b9a060-4d.kb-button{border-top:1px solid #015e9a;border-right:1px solid #015e9a;border-bottom:1px solid #015e9a;border-left:1px solid #015e9a;}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn43442_b9a060-4d.kb-button{border-top:1px solid #015e9a;border-right:1px solid #015e9a;border-bottom:1px solid #015e9a;border-left:1px solid #015e9a;}}<\/style><a class=\"kb-button kt-button button kb-btn43442_b9a060-4d kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-outline  kt-btn-has-text-true kt-btn-has-svg-true  wp-block-kadence-singlebtn\" href=\"https:\/\/ez.restek.com\/proezlc\" target=\"_blank\" rel=\"noopener\"><span class=\"kt-btn-inner-text\">www.restek.com\/ezlc<\/span><span class=\"kb-svg-icon-wrap kb-svg-icon-fe_arrowRight kt-btn-icon-side-right\"><svg viewBox=\"0 0 24 24\"  fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\"\/><polyline points=\"12 5 19 12 12 19\"\/><\/svg><\/span><\/a><\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n<style>.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{display:flex;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col,.kadence-column43442_e435a1-c0 > .kt-inside-inner-col:before{border-top-left-radius:16px;border-top-right-radius:16px;border-bottom-right-radius:16px;border-bottom-left-radius:16px;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;align-items:center;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col > .kb-image-is-ratio-size{align-self:stretch;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col > .wp-block-kadence-advancedgallery{align-self:stretch;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col > .aligncenter{width:100%;}.kt-row-column-wrap > .kadence-column43442_e435a1-c0{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_e435a1-c0{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{background-color:var(--global-palette2, #2B6CB0);}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43442_e435a1-c0{position:relative;}.kadence-column43442_e435a1-c0, .kt-inside-inner-col > .kadence-column43442_e435a1-c0:not(.specificity){margin-top:45px;margin-bottom:10px;}@media all and (max-width: 1024px){.kt-row-column-wrap > .kadence-column43442_e435a1-c0{align-self:center;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_e435a1-c0{align-self:auto;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 1024px){.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;align-items:center;}}@media all and (max-width: 767px){.kt-row-column-wrap > .kadence-column43442_e435a1-c0{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_e435a1-c0{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43442_e435a1-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;align-items:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43442_e435a1-c0 kvs-lg-false kvs-md-false hub-guttered-centered-container\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f, .wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f[data-kb-block=\"kb-adv-heading43442_b188b3-6f\"]{text-align:center;font-size:48px;line-height:54px;font-weight:400;font-style:normal;font-family:Inter;text-transform:none;}.wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f[data-kb-block=\"kb-adv-heading43442_b188b3-6f\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f[data-kb-block=\"kb-adv-heading43442_b188b3-6f\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f, .wp-block-kadence-advancedheading.kt-adv-heading43442_b188b3-6f[data-kb-block=\"kb-adv-heading43442_b188b3-6f\"]{font-size:36px;}}<\/style>\n<h2 class=\"kt-adv-heading43442_b188b3-6f wp-block-kadence-advancedheading has-theme-palette-9-color has-text-color\" data-kb-block=\"kb-adv-heading43442_b188b3-6f\">Start Saving Time Today<\/h2>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c, .wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c[data-kb-block=\"kb-adv-heading43442_38adcc-3c\"]{text-align:center;font-size:20px;font-weight:400;font-style:normal;font-family:'Open Sans';color:#dee2e6;}.wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c[data-kb-block=\"kb-adv-heading43442_38adcc-3c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c[data-kb-block=\"kb-adv-heading43442_38adcc-3c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c, .wp-block-kadence-advancedheading.kt-adv-heading43442_38adcc-3c[data-kb-block=\"kb-adv-heading43442_38adcc-3c\"]{font-size:16px;}}<\/style>\n<p class=\"kt-adv-heading43442_38adcc-3c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading43442_38adcc-3c\">Develop PFAS Methods in Minutes with our Pro&nbsp;<em>EZ<\/em>LC Chromatogram Modeler<\/p>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns43442_bd4f0a-ce{gap:var(--global-kb-gap-xs, 0.5rem );justify-content:center;align-items:center;}.kt-btns43442_bd4f0a-ce .kt-button{font-weight:normal;font-style:normal;}.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43442_bd4f0a-ce .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns43442_bd4f0a-ce\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn43442_ffddce-3b.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn43442_ffddce-3b.kb-button{color:#0c115b;background:var(--global-palette9, #ffffff);font-size:16px;line-height:20px;font-family:'Open Sans';font-weight:600;border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-right-radius:8px;border-bottom-left-radius:8px;border-top:1px solid #015e9a;border-right:1px solid #015e9a;border-bottom:1px solid #015e9a;border-left:1px solid #015e9a;padding-top:12px;padding-right:16px;padding-bottom:12px;padding-left:16px;}.kb-btn43442_ffddce-3b.kb-button .kb-svg-icon-wrap{font-size:16px;--kb-button-icon-size:16px;}.wp-block-kadence-advancedbtn .kb-btn43442_ffddce-3b.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn43442_ffddce-3b.kb-button:focus{color:#0c115b;background:var(--global-palette9, #ffffff);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn43442_ffddce-3b.kb-button{border-top:1px solid #015e9a;border-right:1px solid #015e9a;border-bottom:1px solid #015e9a;border-left:1px solid #015e9a;}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn43442_ffddce-3b.kb-button{border-top:1px solid #015e9a;border-right:1px solid #015e9a;border-bottom:1px solid #015e9a;border-left:1px solid #015e9a;}}<\/style><a class=\"kb-button kt-button button kb-btn43442_ffddce-3b kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-outline  kt-btn-has-text-true kt-btn-has-svg-true  wp-block-kadence-singlebtn\" href=\"https:\/\/ez.restek.com\/proezlc\" target=\"_blank\" rel=\"noopener\"><span class=\"kt-btn-inner-text\">www.restek.com\/ezlc<\/span><span class=\"kb-svg-icon-wrap kb-svg-icon-fe_arrowRight kt-btn-icon-side-right\"><svg viewBox=\"0 0 24 24\"  fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\"\/><polyline points=\"12 5 19 12 12 19\"\/><\/svg><\/span><\/a><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Simplify your EPA Method 533 workflow with this high-level method overview and convenient list of recommended products for analyzing PFAS in drinking water.<\/p>\n","protected":false},"author":11,"featured_media":6631,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[7],"tags":[],"industries-application":[2163,2161,2165,2668],"post-badge":[],"resource-type":[567],"product-library":[2391,2373,2399,2374,2375,2402,2405],"resource-technique":[2299,2302,2304],"ppma_author":[414],"class_list":["post-43442","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","industries-application-drinking-water-wastewater-testing","industries-application-environmental","industries-application-pfas-testing","industries-application-semivolatiles","resource-type-selection-guides","product-library-lc-columns","product-library-liquid-chromatography-products","product-library-liquid-reference-standards","product-library-reference-standard-products","product-library-sample-preparation-products","product-library-spe-sle","product-library-vials-accessories","resource-technique-liquid-chromatography","resource-technique-ms-ms","resource-technique-solid-phase-extraction-spe"],"acf":[],"taxonomy_info":{"category":[{"value":7,"label":"Articles"}],"industries-application":[{"value":2163,"label":"Drinking Water &amp; Wastewater Testing"},{"value":2161,"label":"Environmental"},{"value":2165,"label":"PFAS Testing"},{"value":2668,"label":"Semivolatiles"}],"resource-type":[{"value":567,"label":"Selection Guides"}],"product-library":[{"value":2391,"label":"LC Columns"},{"value":2373,"label":"Liquid Chromatography Products"},{"value":2399,"label":"Liquid Reference Standards"},{"value":2374,"label":"Reference Standard Products"},{"value":2375,"label":"Sample Preparation Products"},{"value":2402,"label":"SPE &amp; SLE"},{"value":2405,"label":"Vials &amp; Accessories"}],"resource-technique":[{"value":2299,"label":"Liquid Chromatography"},{"value":2302,"label":"MS\/MS"},{"value":2304,"label":"Solid-Phase Extraction (SPE)"}]},"featured_image_src_large":["https:\/\/discover.restek.com\/wp-content\/uploads\/feature-EVAR4285-1024x536.jpg",1024,536,true],"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/zh-hans\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":7,"name":"Articles","slug":"articles","term_group":0,"term_taxonomy_id":7,"taxonomy":"category","description":"","parent":0,"count":468,"filter":"raw","cat_ID":7,"category_count":468,"category_description":"","cat_name":"Articles","category_nicename":"articles","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\/zh-hans\/wp-json\/wp\/v2\/posts\/43442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/comments?post=43442"}],"version-history":[{"count":12,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/43442\/revisions"}],"predecessor-version":[{"id":91708,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/posts\/43442\/revisions\/91708"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/media\/6631"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/media?parent=43442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/categories?post=43442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/tags?post=43442"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/industries-application?post=43442"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/post-badge?post=43442"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/resource-type?post=43442"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/product-library?post=43442"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/resource-technique?post=43442"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/zh-hans\/wp-json\/wp\/v2\/ppma_author?post=43442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}