Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 295, Issue 1-3, Pages 131-141Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0048-9697(02)00064-5
Keywords
solid-phase extraction; seawater; contamination; pharmaceuticals; clofibric acid; diclofenac; ibuprofen; caffeine; DEET
Categories
Ask authors/readers for more resources
An analytical method is presented, which allows the simultaneous extraction of neutral and acidic compounds from 20-L seawater samples at ambient pH (similar to 8.3). It is based on a solid-phase extraction by means of a polystyrene-divinylbenzene sorbent and gas chromatographic-mass spectrometric detection, and provides detection limits in the lower pg/L range. The method was applied to the screening of samples from different North Sea areas for clofibric acid, diclofenac, ibuprofen, ketoprofen, propyphenazone, caffeine and N,N-diethyl-3-toluamide (DEET). Whereas clofibric acid, caffeine and DEET showed to be present throughout the North Sea in concentrations of up to 1.3, 16 and 1.1 ng/L, respectively, propyphenazone could only be detected after further clean-up. Diclofenac and ibuprofen were found in the estuary of the river Elbe (6.2 and 0.6 ng/L, respectively) but in none of the marine samples. Ketoprofen was below the detection limit in all samples. (C) 2002 Elsevier Science B.V All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available