Citation:

Wong, C S. AND A W. Garrison. ENANTIOMER SEPARATION OF POLYCHLORINATED BIPHENYL ATROPISOMERS AND POLYCHLORINATED BIPHENYL RETENTION BEHAVIOR ON MODIFIED CYCLODEXTRIN CAPILLARY GAS CHROMATOGRAPHY COLUMNS. JOURNAL OF CHROMATOGRAPHY A 886(2):213-220, (2000).

Description:

Seven commercially-available chiral capillary gas chromatography columns containing modified cyclodextrins were evaluated for their ability to separate enantiomers of the 19 stable chiral polychlorinated biphenyl (PCB) atropisomers, and for their ability to separate these enantiomers from achiral congeners, necessary for trace environmental analysis of chiral PCBs. The enantiomers of each of the 19 chiral PCBs were at least partially separated on one or more of these columns. Enantiomeric ratios of eleven atropisomers could also be quantified on six columns as they did not coelute with any other congener containing the same number of chlorine atoms, so could be quantified using gas chromatography-mass spectrometry. Analysis of a lake sediment heavily contaminated with PCBs showed enantioselective occurrence of PCB 91, proof positive of enantioselective in situ reductive dechlorination at the sampling site.

Record Details:

Record Type:DOCUMENT( JOURNAL/ PEER REVIEWED JOURNAL)

Product Published Date:01/15/2000

Record Last Revised:12/22/2005

Record ID: 64952

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Related Organizations:

Role :OWNER

Organization Name :US ENVIRONMENTAL PROTECTION AGENCY

Organization Name :OFFICE OF RESEARCH AND DEVELOPMENT

Organization Name :NATIONAL EXPOSURE RESEARCH LAB

Organization Name :ECOSYSTEMS RESEARCH DIVISION

Document IDs:

EPA Number :EPA/600/J-02/157