Per- and Polyfluorinated Alkyl Substances
EMERGING CONTAMINANTS OF CONCERN IN THE ENVIRONMENT
Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), as well as related per and polyfluorinated alkyl substances (PFAS) are man-made chemicals that, because of their stability under extreme heat and chemical stress, as well as their surfactant properties, have been used in a variety of applications including industrial polymers (Teflon™), stain repellants (Scotch Guard™), aqueous film forming foams (AFFF or firefighting foams).
Bureau Veritas provides analyses for an extensive list of PFAS (including PFOS and PFOA), many of which are known precursor compounds, in a diverse range of environmental matrices, as well as the total oxidizable precursors (TOPs) assay and now, the total organofluorine analysis by combustion ion chromatography (TOF-CIC).
TOTAL ORGANOFLUORINE (TOF)
Total Organofluorine (TOF) analysis gives a quantitative assessment of both the same PFAS compounds that are currently reported by LC-MS/MS and other fluoroorganic compounds not readily determined by standard PFAS testing. It reports a cumulative single parameter for water samples in µg/L rather than individual components.
Other features include:
- Complements existing approaches.
- Economically attractive.
- Optimize utilization of LC-MS/MS.
Also check out our online resources here:
- Webinar (1 hour): Total Organofluorine (TOF) Analysis: The BIG Picture in PFAS Testing
- Bloomberg Law Article: Broad ‘Fishnet’ PFAS Testing Worries Industry, Helps Regulators
- ThermoFisher Scientific Paper: AOF by combustion IC – non-targeted complemental determination of PFAS in aqueous samples
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