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采用多维气相色谱/电子捕获检测法和质谱法对人乳样品中手性2,2',3,3',4,6'-六氯联苯(PCB 132)进行对映体选择性测定。

Enantioselective determination of chiral 2,2',3,3',4,6'-hexachlorobiphenyl (PCB 132) in human milk samples by multidimensional gas chromatography/electron capture detection and by mass spectrometry.

作者信息

Glausch A, Hahn J, Schurig V

机构信息

Institut für Organische Chemie, Universität Tübingen, Germany.

出版信息

Chemosphere. 1995 Jun;30(11):2079-85. doi: 10.1016/0045-6535(95)00085-m.

DOI:10.1016/0045-6535(95)00085-m
PMID:7620847
Abstract

The enantiomeric ratio (ER) of the chiral polychlorinated biphenyl (PCB) 132 (2,2',3,3',4,6'-hexachlorobiphenyl) was determined in human milk samples. The enantiomers were separated by multidimensional gas chromatography (MDGC), using different achiral columns for pre-separation and a Chirasil-Dex column for enantiomer separation, and quantified by electron-capture detection (ECD) and by mass spectrometry (MS/SIM). The determined enantiomeric ratios varied between 0.45-0.85 (enantiomeric excess: 38-8%).

摘要

在人乳样本中测定了手性多氯联苯(PCB)132(2,2',3,3',4,6'-六氯联苯)的对映体比例(ER)。对映体通过多维气相色谱法(MDGC)进行分离,使用不同的非手性柱进行预分离,并使用Chirasil-Dex柱进行对映体分离,通过电子捕获检测(ECD)和质谱(MS/SIM)进行定量。所测定的对映体比例在0.45 - 0.85之间(对映体过量:38 - 8%)。

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