{"id":43444,"date":"2025-10-03T21:11:55","date_gmt":"2025-10-03T21:11:55","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/pfas-analysis-by-us-epa-method-1633a-for-aqueous-solid-biosolids-and-tissue\/"},"modified":"2026-04-14T17:22:25","modified_gmt":"2026-04-14T17:22:25","slug":"pfas-analysis-by-us-epa-method-1633a-for-aqueous-solid-biosolids-and-tissue","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/it\/articles\/evar4286\/pfas-analysis-by-us-epa-method-1633a-for-aqueous-solid-biosolids-and-tissue","title":{"rendered":"PFAS Analysis by U.S. EPA Method 1633A for Aqueous, Solid, Biosolids, and Tissue"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li><strong>Sample Matrix:<\/strong> aqueous, solid, biosolids, and tissue samples<\/li>\n\n\n\n<li><strong>Sample Preparation: <\/strong>WAX 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\">Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS\/MS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">U.S. EPA Method 1633A is used for the analysis of 40 PFAS in aqueous, solid, biosolids, and tissue samples. The analysis of bile acids TCDCA, TDCA, and TUDCA is also required. EPA Method 1633A combines solid-phase extraction sample preparation using weak anion exchange (WAX) cartridges with LC-MS\/MS analysis on a C18 column. The method is performance based and allows modifications to be made to improve performance (e.g., to overcome interferences or improve sensitivity, accuracy, or precision), but only if all method performance criteria are met. The full analyte list and recommended products for PFAS analysis in aqueous, solid, biosolids, and tissue samples by Method 1633A 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\/system\/files\/documents\/2024-12\/method-1633a-december-5-2024-508-compliant.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 1633A for PFAS Analysis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">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 1633A for method-specific nomenclature. Note that the analysis of bile acids TCDCA, TDCA, and TUDCA is also required by this method.<\/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>NEtFOSAA<\/td><td><em>N<\/em>-ethyl perfluorooctanesulfonamidoacetic acid<\/td><td>2991-50-6<\/td><\/tr><tr><td>NMeFOSAA<\/td><td><em>N<\/em>-methyl perfluorooctanesulfonamidoacetic acid<\/td><td>2355-31-9<\/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>PFTeDA<\/td><td>Perfluorotetradecanoic acid<\/td><td>376-06-7<\/td><\/tr><tr><td>PFTrDA<\/td><td>Perfluorotridecanoic acid<\/td><td>72629-94-8<\/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>PFDS<\/td><td>Perfluoro-1-decanesulfonic acid<\/td><td>335-77-3<\/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>FOSA<\/td><td>Perfluoro-1-octanesulfonamide<\/td><td>754-91-6<\/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>NMeFOSA<\/td><td><em>N<\/em>-Methylperfluorooctanesulfonamide<\/td><td>31506-32-8<\/td><\/tr><tr><td>NEtFOSA<\/td><td><em>N<\/em>-ethylperfluorooctanesulfonamide<\/td><td>4151-50-2<\/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-3H-perfluorononanoic acid<\/td><td>919005-14-4<\/td><\/tr><tr><td>PFNS<\/td><td>Perfluoro-1-nonanesulfonic acid<\/td><td>68259-12-1<\/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><tr><td>NMeFOSE<\/td><td>2-(<em>N<\/em>-methylperfluoro-1-octanesulfonamido)-ethanol<\/td><td>24448-09-7<\/td><\/tr><tr><td>NEtFOSE<\/td><td>2-(<em>N<\/em>-ethylperfluoro-1-octanesulfonamido)-ethanol<\/td><td>1691-99-2<\/td><\/tr><tr><td>PFDoS<\/td><td>Perfluorododecane sulfonate<\/td><td>79780-39-5<\/td><\/tr><tr><td>3:3 FTCA<\/td><td>3:3 Fluorotelomer carboxylic acid<\/td><td>356-02-5<\/td><\/tr><tr><td>5:3 FTCA<\/td><td>5:3 Fluorotelomer carboxylic acid<\/td><td>914637-49-3<\/td><\/tr><tr><td>7:3 FTCA, FHpPA<\/td><td>7:3 Fluorotelomer carboxylic acid or 3-perfluoroheptyl propanoic acid<\/td><td>812-70-4<\/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:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Recommended Products for U.S. EPA Method 1633A 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\">                                N\u00b0 Catalogo 9304A52                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Colonna HPLC Raptor C18, 2,7 \u00b5m, 50 x 2,1 mm<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 9634252                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Colonna LC Force C18, 1,8 \u00b5m, 50 x 2,1 mm<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 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, colonna HPLC<\/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\">Esplora Prodotto<\/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 class=\"wp-block-paragraph\">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\">                                N\u00b0 Catalogo 25809                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Filtro precolonna UHPLC UltraShield, frit 0,2 \u00b5m, cad.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 25808                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Holder EXP a connessione diretta per cartucce per precolonne EXP, comprende raccordo e ferrule<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 9304A0252                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Cartuccia per precolonna Raptor C18 EXP, 2,7 \u00b5m, 5 x 2,1 mm, 3 pz.<\/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\">Esplora Prodotto<\/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\/28937\">                                N\u00b0 Catalogo 28937                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Cartucce SPE Resprep S-DVB, 500mg\/6ml, 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\/28937\">Esplora Prodotto<\/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\/28268\">                                N\u00b0 Catalogo 28268                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Cartuccia SPE Resprep Polimerica, WAX, 6ml\/500mg, 30\u03bcm, 30-conf.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 28292                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Cartuccia SPE Resprep Polimerica, WAX, 6ml\/200mg, 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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 26015                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Provette vuote SPE, serbatoio per campioni, 75 mL, polipropilene, 12 pz.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 26007                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Connettore SPE, 1, 3, 6, 10 o 15 mL, polipropilene, 15 pz.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 28299-VM                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Vacuum Manifold Resprep QR-24<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 28298-VM                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Vacuum Manifold Resprep QR-12<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 27426                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Pompa da vuoto in PTFE Chemker 300, 20 l\/min, CA 110 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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 27427                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Pompa da vuoto in PTFE Chemker 300, 18 l\/min, CA 220 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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 23243                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Vial a volume ridotto in polipropilene con filettatura, 9 mm, 700 \u00b5L, 12 x 32 mm, 100 pz.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 23246                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Vial a volume ridotto in polipropilene con filettatura, 9 mm, 700 \u00b5L, 12 x 32 mm, 1000 pz.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 23244                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Tappi in polietilene da 2,0 mL con top solido di 9 mm, filettatura, membrana spessore 10 mm, trasparente, 100 pz.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 23247                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Tappi in polietilene da 2,0 mL con top solido di 9 mm, filettatura, membrana spessore 10 mm, trasparente, 1000 pz.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 25846                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Provette da centrifuga vuote da 50 ml, Polipropilene con tappo, 50 provette, 50-conf.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 28290                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Provette da centrifuga vuote da 50 ml, Polipropilene con tappo, 50 provette, 500-conf.<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 22775                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Siringa di Plastica Norm-Ject, Luer Lock Tip, graduazione fino a 12 mL, 10 mL, Conf. da 100<\/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\">Esplora Prodotto<\/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\">                                N\u00b0 Catalogo 22774                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Siringa di Plastica Norm-Ject, Luer Lock Tip, graduazione fino a 6 mL, 5 mL, Conf. da 100<\/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\">Esplora Prodotto<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:40px\" 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-btns43444_418df4-59{gap:var(--global-kb-gap-md, 2rem);justify-content:center;align-items:center;}.kt-btns43444_418df4-59 .kt-button{font-weight:normal;font-style:normal;}.kt-btns43444_418df4-59 .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns43444_418df4-59 .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns43444_418df4-59 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43444_418df4-59 .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns43444_418df4-59 .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns43444_418df4-59 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns43444_418df4-59 .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns43444_418df4-59\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn43444_31dc3d-07.kb-button{width:initial;}<\/style><a class=\"kb-button kt-button button kb-btn43444_31dc3d-07 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-btn43444_a64fab-71.kb-button{width:initial;}<\/style><a class=\"kb-button kt-button button kb-btn43444_a64fab-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\/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-btn43444_6d962f-43.kb-button{width:initial;}<\/style><a class=\"kb-button kt-button button kb-btn43444_6d962f-43 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-column43444_951742-07 > .kt-inside-inner-col,.kadence-column43444_951742-07 > .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-column43444_951742-07 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43444_951742-07 > .kt-inside-inner-col{flex-direction:column;}.kadence-column43444_951742-07 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column43444_951742-07 > .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-column43444_951742-07 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43444_951742-07{position:relative;}.kadence-column43444_951742-07, .kt-inside-inner-col > .kadence-column43444_951742-07:not(.specificity){margin-top:45px;margin-bottom:10px;}@media all and (max-width: 1024px){.kadence-column43444_951742-07 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column43444_951742-07 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43444_951742-07 kvs-sm-false hub-guttered-centered-container\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id43444_af2fec-88 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id43444_af2fec-88 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id43444_af2fec-88 > .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-id43444_af2fec-88 > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id43444_af2fec-88 > .kt-row-column-wrap{grid-template-columns:minmax(0, 2fr) minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id43444_af2fec-88 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id43444_af2fec-88 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-column43444_af1b2d-37 > .kt-inside-inner-col{display:flex;}.kadence-column43444_af1b2d-37 > .kt-inside-inner-col,.kadence-column43444_af1b2d-37 > .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-column43444_af1b2d-37 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43444_af1b2d-37 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43444_af1b2d-37 > .kt-inside-inner-col > .aligncenter{width:100%;}.kt-row-column-wrap > .kadence-column43444_af1b2d-37{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43444_af1b2d-37{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43444_af1b2d-37 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43444_af1b2d-37 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43444_af1b2d-37{position:relative;}@media all and (max-width: 1024px){.kt-row-column-wrap > .kadence-column43444_af1b2d-37{align-self:center;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43444_af1b2d-37{align-self:auto;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43444_af1b2d-37 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 1024px){.kadence-column43444_af1b2d-37 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kt-row-column-wrap > .kadence-column43444_af1b2d-37{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43444_af1b2d-37{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column43444_af1b2d-37 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column43444_af1b2d-37 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43444_af1b2d-37\"><div class=\"kt-inside-inner-col\"><\/div><\/div>\n\n\n<style>.kadence-column43444_0102b0-87 > .kt-inside-inner-col,.kadence-column43444_0102b0-87 > .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-column43444_0102b0-87 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column43444_0102b0-87 > .kt-inside-inner-col{flex-direction:column;}.kadence-column43444_0102b0-87 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column43444_0102b0-87 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column43444_0102b0-87{position:relative;}@media all and (max-width: 1024px){.kadence-column43444_0102b0-87 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column43444_0102b0-87 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column43444_0102b0-87\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading43444_ccfc27-1b, .wp-block-kadence-advancedheading.kt-adv-heading43444_ccfc27-1b[data-kb-block=\"kb-adv-heading43444_ccfc27-1b\"]{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-heading43444_ccfc27-1b mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading43444_ccfc27-1b[data-kb-block=\"kb-adv-heading43444_ccfc27-1b\"] 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-heading43444_ccfc27-1b img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading43444_ccfc27-1b[data-kb-block=\"kb-adv-heading43444_ccfc27-1b\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading43444_ccfc27-1b, .wp-block-kadence-advancedheading.kt-adv-heading43444_ccfc27-1b[data-kb-block=\"kb-adv-heading43444_ccfc27-1b\"]{font-size:36px;}}<\/style>\n<h2 class=\"kt-adv-heading43444_ccfc27-1b wp-block-kadence-advancedheading has-theme-palette-9-color has-text-color\" data-kb-block=\"kb-adv-heading43444_ccfc27-1b\">Start Saving <br>Time Today<\/h2>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77, .wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77[data-kb-block=\"kb-adv-heading43444_284227-77\"]{text-align:center;font-size:20px;font-weight:400;font-style:normal;font-family:'Open Sans';color:#dee2e6;}.wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77[data-kb-block=\"kb-adv-heading43444_284227-77\"] 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-heading43444_284227-77 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77[data-kb-block=\"kb-adv-heading43444_284227-77\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77, .wp-block-kadence-advancedheading.kt-adv-heading43444_284227-77[data-kb-block=\"kb-adv-heading43444_284227-77\"]{font-size:16px;}}<\/style>\n<p class=\"kt-adv-heading43444_284227-77 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading43444_284227-77\">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-btns43444_aeaf2c-a5{gap:var(--global-kb-gap-xs, 0.5rem 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