Abstract
A method is described which permits the trace analysis of 10 chlorobenzenes in aqueous samples. Chlorobenzenes were extracted from water samples by solid-phase extraction with a C 18 cartridge and analysis was carried out by gas chromatography–mass spectrometry in the selected-ion monitoring mode. The recovery and precision of the method were evaluated by extraction of spiked reagent-grade water at concentration levels of 0.1, 1.0 and 10.0 μg/l. This method was applied to the determination of chlorobenzenes in tap, ground and river water. By preparing 200 ml of environmental water samples, the detection limits of the compounds studied were in the range of 0.010–0.042 μg/l.
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