Method for the analysis of polybrominated diphenylethers in sediments and biota

被引:144
作者
de Boer, J
Allchin, C
Law, R
Zegers, B
Boon, JP
机构
[1] Netherlands Inst Fisheries Res RIVO, Ijmuiden, Netherlands
[2] Ctr Environm Fisheries & Aquaculture Sci, Burnham On Crouch CM0 8HA, Essex, England
[3] Netherlands Inst Sea Res, NL-1790 AB Den Burg, Texel, Netherlands
关键词
polybrominated diphenylether; method development; intercomparison study; gas chromatography; mass spectrometry;
D O I
10.1016/S0165-9936(01)00097-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Three institutes worked together on the development and improvement of methods for the analysis of polybrominated diphenylethers (PBDEs) in sediments and biota. The methods developed consist of a Soxhlet, Ultra Turrax* (biota) or shake-flask extraction (sediment) using hexane (or pentane)/acetone solvent mixtures, clean-up by alumina column chromatography or by gel permeation chromatography, further clean-up by silica gel column chromatography and treatment with sulphuric acid. Several alternatives for extraction and cleanup yielded similar results. The final determination is performed by GC/NCI-MS in the selected ion mode with m/z values of both Br isotopes (79 and 81 occurring in a 1:1 ratio). For decaBDE the fragments m/z 486.7 and 488.7 were also scanned. The coefficients of variation obtained with this method are between 10 and 35% for individual congeners, and comply at least with the international state-of-the-art for this type of analysis. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:591 / 599
页数:9
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