Guidance recommends three methods to test total PFAS in aqueous samples
The presenter outlined three recommended approaches to measure total PFAS (settling without centrifuge; centrifuge and use one SPE; centrifuge and separate extracts), and said all methods start by adding EIS and equilibrating samples for 30 minutes.
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The presenter said MassDEP requests labs to test for total PFAS in aqueous samples rather than only the soluble fraction, and described three recommended approaches. "All of the methods start with adding EIS and allowing the sample to equilibrate for 30 minutes," the presenter said, and then explained the three procedures for combining aqueous phase and particulate-associated PFAS prior to SPE extraction.
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