T/ACEF 185-2025 The determination of 31 types of perfluoro and polyfluoroalkyl substances (PFAS) and total oxidizable precursor (TOP) in surfactants using liquid chromatography-triple quadrupole mass spectrometry

Scope

Scope: This document describes the methods for directly determining 31 perfluorinated and polyfluorinated alkyl compounds (PFAS) in surfactants using liquid chromatography-triple quadrupole mass spectrometry, as well as the method of oxidizing and pretreating the samples before determination. This document is applicable to the determination of 31 PFAS and total oxidizable precursors (TOP) in surfactant products. The instrument detection limits (IDL) of the 31 PFAS are 0.10 ng/mL to 1.93 ng/mL, as detailed in Appendix A. Main technical content: 1. Principle 2. Interference and elimination 3. Reagents or materials 4. Instrumentation 5. Samples 6. Test procedures 7. Test data processing 8. Precision and accuracy 9. Quality assurance and quality control 10. Waste disposal 11. Precautions Appendix A (normative): Information on target compounds and instrument detection limits Appendix B (informative): Correspondence between target compounds and isotope internal standards Appendix C (informative): Mass spectrometry parameters of target compounds and isotope internal standards Appendix D (informative): Retention times of 31 PFAS

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