Oxidative Transformation of Nafion-Related Fluorinated Ether Sulfonates: Comparison with Legacy PFAS Structures and Opportunities of Acidic Persulfate Digestion for PFAS Precursor Analysis

The total oxidizable precursor (TOP) assay has been extensively used for detecting PFAS pollutants that do not have analytical standards. It uses hydroxyl radicals (HO•) from the heat activation of persulfate under alkaline pH to convert H-containing precursors to perfluoroalkyl carboxylates (PFCAs)...

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Veröffentlicht in:	Environmental science & technology 2024-04, Vol.58 (14), p.6415-6424
Hauptverfasser:	Liu, Zekun, Jin, Bosen, Rao, Dandan, Bentel, Michael J., Liu, Tianchi, Gao, Jinyu, Men, Yujie, Liu, Jinyong
Format:	Artikel
Sprache:	eng
Schlagworte:	Acidic oxides Assaying Carboxylates Decarboxylation Digestion Free radicals Functional groups Hydroxyl radicals Oxidants Oxidation Oxidizing agents Perfluoroalkyl & polyfluoroalkyl substances Physico-Chemical Treatment and Resource Recovery Pollutants Precursors Sulfonates
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