GAS CHROMATOGRAPHY-NEGATIVE ION CHEMICAL-IONIZATION MASS-SPECTROMETRY FOR THE DETERMINATION AND IDENTIFICATION OF PLANAR POLYCHLORINATED-BIPHENYLS IN BIOLOGICAL SAMPLES

被引：16

作者：

BAGHERI, H ^{[1
]}

LEONARDS, PEG ^{[1
]}

GHIJSEN, RT ^{[1
]}

BRINKMAN, UAT ^{[1
]}

机构：

[1] FREE UNIV AMSTERDAM, INST ENVIRONM STUDIES, 1081 HV AMSTERDAM, NETHERLANDS

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1993年 / 50卷 / 04期

关键词：

PLANAR PCBS; CG-NCIMS; BIOLOGICAL SAMPLES;

D O I：

10.1080/03067319308027602

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Planar and mono-ortho substituted polychlorinated biphenyls (PCBs) have been identified and quantified at very low concentrations in biological samples (herring and polecat samples) using an off-line combination of column liquid chromatography and gas chromatography-negative ion chemical ionization mass spectrometry (GC-NCIMS). The PCBs generate good mass spectra dominated by the molecular ion as the base peak. The dissociative electron capture mechanism is more pronounced for the higher chlorinated PCBs. The limits of detection of the planar and mono-ortho substituted PCBs under selected ion monitoring (SIM) conditions are 40-100 fg.

引用

页码：257 / 268

页数：12

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