Enhanced comprehensive two-dimensional gas chromatographic resolution of polychlorinated biphenyls on a non-polar polysiloxane and an ionic liquid column series

A total of 196 out of 209 polychlorobiphenyl (PCB) congeners were resolved using GC × GC–TOFMS with a non-polar/ionic liquid column series consisting of poly(50%- n-octyl-50%-methyl)siloxane and (1,12-di(tripropylphosphonium)dodecane bis(trifluoromethansulfonyl)amide) in the first and second dimensi...

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Bibliographic Details
Published in:Journal of Chromatography A 2011-02, Vol.1218 (5), p.746-751
Main Authors: Zapadlo, Michal, Krupčík, Ján, Kovalczuk, Tomáš, Májek, Pavel, Špánik, Ivan, Armstrong, Daniel W., Sandra, Pat
Format: Article
Language:English
Subjects:
Analytical chemistry
Aroclors
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography
Comprehensive two-dimensional GC
Congeners
Dioxins
Exact sciences and technology
Gas chromatographic methods
Ionic liquid column
Ionic liquids
Polychlorinated biphenyls
Polychlorobiphenyls
Polysiloxanes
Time-of-flight mass spectrometry
Toxicology
Two dimensional
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Summary:A total of 196 out of 209 polychlorobiphenyl (PCB) congeners were resolved using GC × GC–TOFMS with a non-polar/ionic liquid column series consisting of poly(50%- n-octyl-50%-methyl)siloxane and (1,12-di(tripropylphosphonium)dodecane bis(trifluoromethansulfonyl)amide) in the first and second dimension, respectively. It has been found that 13 PCB congeners overlap in five doublets (CB12 + CB13, CB62 + CB75, CB70 + CB76, CB97 + CB125 and CB153 + CB168) and one triplet (CB90 + CB101 + CB113). All toxic, “dioxin like” congeners were separated with no interferences from any PCB congener. The 109 PCBs present in Aroclor 1242 and the 82 PCBs present in Aroclor 1260 were resolved GC × GC–TOFMS analysis on this column set.
ISSN:0021-9673
DOI:10.1016/j.chroma.2010.12.013