Total organofluorine method for PFAS using reductive defluorination
AssigneeBattelle Memorial Institute
InventorsKavitha Dasu, Chad Cucksey, Franco Pala
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Abstract
A method of determining total organofluorine in a sample comprising PFAS, comprising: providing a solution of PFAS in an organic solvent to obtain extracted PFAS, or extracting a sample with an organic solvent to obtain extracted PFAS; treating the extracted PFAS with a sodium metal dispersion and alcohol to obtain sodium fluoride; and quantifying the amount of the fluoride. Surprisingly, we discovered that the method recovered substantial fluorine from PFAS and significantly higher yields obtained by selection of the appropriate alcohols. The method is selective for organofluorine from inorganic fluorine.
Claims20
A method of determining total organofluorine in a sample comprising PFAS, comprising:
- providing a solution of PFAS in an organic solvent;
- treating the solution of PFAS with sodium metal and alcohol to obtain sodium fluoride;
- and
- quantifying the amount of the fluoride.
Dependencies are inferred from the claim text.