Published:Journal of Chromatographic Science,
ISSN 0021-9665Volume
40, Number 5, May/June 2002, pp. 254-268
Fast Gas Chromatography–Time-of-Flight Mass Spectrometry
of Polychlorinated Biphenyls and Other Environmental Contaminants
Jack W. Cochran
LECO Corporation, 815 Pilot Road, Suite C, Las Vegas, NV, 89119
Practical applications of fast gas chromatography (GC) with time-of-flight
mass spectrometry (TOFMS) are presented. A narrow-bore column (0.10-mm i.d.)
is used to analyze over 100 specific polychlorinated biphenyl congeners in an
Aroclor mix and a sediment sample in 10.5 min. Sample preparation is minimized
for the sediment to more closely match the speed advantage gained by using fast
GC–TOFMS. The possibility of using a 0.53-mm-i.d. column operated under
vacuum-outlet conditions for fast GC–TOFMS is established for Aroclors
and a suite of environmental contaminants. Fast acquisition rates and automated
peak-find and spectral deconvolution capabilities are demonstrated for TOFMS.
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