On-line clean-up of pressurized liquid extracts for the determination of polychlorinated biphenyls in feedingstuffs and food matrices using gas chromatography-mass spectrometry

被引:74
作者
Müller, A [1 ]
Björklund, E [1 ]
von Holst, C [1 ]
机构
[1] European Commiss, DG Joint Res Ctr, Inst Hlth & Consumer Protect, Food Prod & Consumer Goods Unit, I-21020 Ispra, VA, Italy
关键词
pressurized liquid extraction; extraction methods; food analysis; feed analysis; polychlorinated biphenyls;
D O I
10.1016/S0021-9673(01)01028-7
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
This paper describes a fast and simple pressurized liquid extraction method for the determination of polychlorinated biphenyls (PCBs) in feedingstuffs and food matrices. The method is based on a simultaneous extraction/clean-up step requiring a minimum of sample handling. The final analysis was performed with gas chromatography-mass spectrometry. Seven PCBs (28, 52, 101, 118, 138, 153 and 180) were analyzed, all of which are indicator congeners that, according to European legislation should be included in the analytical monitoring program. The extracted matrices were spiked feed for poultry and two certified reference materials naturally contaminated with PCBs (cod-liver oil and milk powder), which showed excellent conformity with certified data. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:197 / 205
页数:9
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