Method 533 is a solid phase extraction (SPE) liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the determination of select per- and polyfluoroalkyl substances (PFAS) in drinking water.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- EPA Method 533 (PDF)(52 pp, 876 K, December 2019, 815-B-19-020)