Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 892, Issue 1-2, Pages 29-46Publisher
ELSEVIER
DOI: 10.1016/S0021-9673(00)00744-5
Keywords
gas chromatography; comprehensive two-dimensional gas chromatography; gas chromatography-mass spectrometry; hydrocarbons; alkanes; alkenes
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In this paper, we compare the current separation power of comprehensive two-dimensional gas chromatography (GCxGC) with the potential separation power of GC-mass spectrometry (GC-MS) systems. Using simulated data, we may envisage a GC-MS contour plot, that can be compared with a GCxGC chromatogram. Real examples are used to demonstrate the current potential of the two techniques in the field of hydrocarbon analysis. As a separation technique for complex hydrocarbon mixtures, GCxGC is currently about as powerful as GC-MS is potentially powerful. CC-MS has not reached its potential separation power in this area, because a universal, soft ionization method does not exist. The greatest advantage of GCxGC is, however, its potential for quantitative analysis. Because flame-ionisation detection can be used, quantitative analysis by GCxGC is much more robust, reliable and reproducible. (C) 2000 Elsevier Science B.V. All rights reserved.
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