{"id":28982,"date":"2025-11-17T17:42:35","date_gmt":"2025-11-17T09:42:35","guid":{"rendered":"https:\/\/www.rocker.com.tw\/application\/pfas\/"},"modified":"2026-03-09T11:30:53","modified_gmt":"2026-03-09T03:30:53","slug":"pfas","status":"publish","type":"application","link":"https:\/\/www.rocker.com.tw\/en\/application\/pfas\/","title":{"rendered":"PFAS in Water Samples"},"content":{"rendered":"

PFAS in Water Samples : Analytical Methods and Treatment Strategies
\nKey to Sample Handling and Zero-Contamination Workflow<\/span><\/span><\/strong><\/h1>\n

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Per- and polyfluoroalkyl substances (PFAS), widely known as “forever chemicals” that have been extensively used since the 1950s, have become a global focus of environmental and health regulation over the past two decades due to their widespread distribution in the environment and potential toxicity. As regulatory requirements demand detection at ultra-trace levels of ng\/L (ppt), accurate detection and quantification (LC-MS\/MS) pose the primary challenge for laboratories aiming to ensure water quality safety.<\/p>\n

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This article aims to discuss the regulation and testing of PFAS in water samples, including drinking water, surface water, and wastewater, and to explore how to optimize laboratory procedures and ensure regulatory compliance.<\/p>\n

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Table of Contents<\/strong><\/span><\/h2>\n

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What are PFAS?<\/strong><\/a>
\nApplications and Sources of PFAS<\/strong><\/a>
\nHealth and Carcinogenic Risks of PFAS<\/strong><\/a>
\nWhy the World is Starting to Focus on PFAS? The Emerging Environmental Challenge<\/strong><\/a>
\nPFAS Drinking Water Regulations and Standards<\/strong><\/a>
\nPFAS Water Sample Testing Procedures<\/strong><\/a>
\nPFAS Testing Considerations: Contamination Prevention is Paramount<\/strong><\/a>
\nFrequently Asked Questions (FAQ)<\/a><\/strong><\/p>\n<\/div>\n

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<\/a>What are PFAS?<\/strong><\/span><\/h2>\n

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PFAS (Per- and polyfluoroalkyl substances) are a large class of artificially synthesized fluorinated aliphatic compounds. Due to their high stability, they are widely used in consumer products and industrial fields. PFAS encompass over 10,000 compounds, with common and strictly regulated representative compounds including: Perfluorooctanoic acid (PFOA), Perfluorooctane sulfonic acid (PFOS), Perfluorononanoic acid (PFNA), and Perfluorohexane sulfonic acid (PFHxS).<\/p>\n

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PFAS possess extreme thermal and chemical stability, enabling them to resist water, lipids, high temperatures, light, and microbial degradation. Therefore, they have been widely applied in consumer products and industrial sectors since 1950. However, this extreme persistence makes PFAS difficult to decompose in the environment and prone to bioaccumulation in organisms. Hence, PFAS are referred to as “forever chemicals” and belong to the group of Persistent Organic Pollutants (POPs) regulated internationally.<\/p>\n

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<\/a>Applications and Sources of PFAS<\/span><\/span><\/strong><\/h2>\n

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Due to their hydrophobic, oleophobic, and surface-active agent characteristics, PFAS are widely used in various products:<\/p>\n