Comparison of GC-ECD, GC-MS and GC-AED for the determination of polychlorinated biphenyls in highly contaminated marine sediments

被引：19

作者：

PedersenBjergaard, S ^{[1
]}

Semb, SI ^{[1
]}

Vedde, J ^{[1
]}

Brevik, EM ^{[1
]}

Greibrokk, T ^{[1
]}

机构：

[1] NORWEGIAN INST WATER RES, N-0411 OSLO, NORWAY

来源：

CHROMATOGRAPHIA | 1996年 / 43卷 / 1-2期

关键词：

gas chromatography; electron capture detection; mass spectrometric detection; atomic emission detection; PCBs in marine sediments;

D O I：

10.1007/BF02272820

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Electron capture detection (ECD), low- and high-resolution mass spectrometry (LR- and HRMS), and atomic emission detection (AED) were compared for the gas chromatographic (GC) detection of polychlorinated biphenyls (PCBs) present in highly contaminated marine sediments. With ECD, LRMS, and even HRMS, detection was seriously disturbed by the complex matrix of the sediments, whereas AED in the chlorine-selective mode provided excellent PCB profiles without interferences. In addition, GC-AED provided congener independent responses, which enabled accurate quantitation of ail PCBs based on a single calibration curve. However, because GC-AED was less sensitive than the other techniques studied, preparation of relatively large amounts of sample (10-20 g dry sediment) was required for mast analyses.

引用

页码：44 / 52

页数：9

共 27 条

[1] INTERLABORATORY STUDY ON DETERMINATION OF POLYCHLORINATED-BIPHENYLS IN ENVIRONMENTALLY CONTAMINATED SEDIMENTS [J].