USE OF POLYMERIC SORBENTS FOR THE OFF-LINE PRECONCENTRATION OF PRIORITY POLLUTANT PHENOLS FROM WATER FOR HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHIC ANALYSIS

The use of porous polymeric minicolumns for the determination of phenols from the U.S. Environmental Priority Pollutant List was studied. For the off-line preconcentration of priority pollutant phenols from water by solid-phase extraction, minicolumns packed with 1,4-di(methacryloyloxymethyl)naphthalene-divinylbenzene copolymer and Amberlite XAD-4 were used. In order to compare the sorption properties of these polymeric sorbents, the recoveries and breakthrough volumes of phenol, p-nitrophenol, 2,4-dinitrophenol, o-chlorophenol, o-nitrophenol, 2,4-dimethylphenol, 4-chloro-m-cresol, 4,6-dinitro-o-cresol, 2,4-dichlorophenol, 2,4,6-,trichlorophenol and pentachlorophenol were studied. © 1990.