Determination of the enantiomeric ratios of chiral PCB 95 and 149 in human milk samples by multidimensional gas chromatography with ECD and MS(SIM) detection

被引：22

作者：

Blanch, GP

Glausch, A

Schurig, V

机构：

[1] CSIC, Inst Fermentac Ind, E-28006 Madrid, Spain

[2] Univ Tubingen, Inst Organ Chem, D-72076 Tubingen, Germany

来源：

EUROPEAN FOOD RESEARCH AND TECHNOLOGY | 1999年 / 209卷 / 3-4期

关键词：

human milk; chiral polychlorinated biphenyls; enantiomeric composition; multidimensional gas chromatography;

D O I：

10.1007/s002170050496

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The enantiomeric ratios of the chiral polychlorinated biphenyls 2, 2', 3, 5', 6-pentachlorobiphenyl (PCB 95) and 2, 2', 3, 4', 5', 6-hexachlorobiphenyl (PCB 149) were determined in human milk samples by multidimensional gas chromatography, using two different achiral columns for preseparation and a chiral column for enantiomeric separation. Detection was carried out by electron capture detection and by mass spectrometry in the single ion monitoring mode. For PCB 95 a slight enrichment of the first eluted peak was determined whereas PCB 149 is present as racemate.

引用

页码：294 / 296

页数：3

共 16 条

[1] Enantioselective analysis of chiral polychlorinated biphenyls in sediment samples by multidimensional gas chromatography electron-capture detection after steam distillation-solvent extraction and sulfur removal [J].