
Keywords: PFBA, perfluorobenzoic acid; PFBSA, perfluorobenzenesulfonic acid; DMAc, N,N-dimethylacetamide; DMSO, dimethyl sulfoxide; TFA, trifluoroacetic acid; GC–MS, gas chromatography-mass spectrometry; TLC, thin layer chromatographyPerfluorobenzoic acid; Perfluor