Journal
WATER RESEARCH
Volume 36, Issue 18, Pages 4455-4470Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0043-1354(02)00177-X
Keywords
solid-phase extraction; semi-permeable membrane devices; atomic emission detection; gas chromatography; mass spectrometry; organic pollutants; surface water; contaminant identification
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An automated GC-MS-based screening method was developed for over 400 industrial, agrochemical and household chemicals. Extracted ion chromatograms were used and the method was aimed at creating a minimum number of false positives. The compound polarity range usually associated with solid-phase extraction was extended to include very apolar, bioaccumulative, compounds by using the complementary semi-permeable membrane device technique. Real-life samples were taken at four locations in the main Dutch river systems and one in an agricultural area. Some 150 compounds were detected in the low-ng/l to low-mug/l range. Next to the target compounds, several brominated and chlorinated non-target compounds were detected by means of GC with atomic emission detection and tentatively identified using mass spectral library searching. (C) 2002 Elsevier Science Ltd. All rights reserved.
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