
																
																	Methodology for studying biotransformation of polyfluoroalkyl precursors in the environment
																
																
																
															Keywords: APPI, Atmospheric pressure photoionization; ARC, Accurate radioisotopic counting; DNPH, 2,4-Dinitrophenylhydrazine; DSPE, Dispersive solid-phase extraction; ECD, Electron-capture detector; ECF, Electrochemical fluorination; EI, Electron impact; ESI, Elect