Comprehensive Two-dimensional GC (GCxGC)

Jan Beens, Vrije Universiteit Amsterdam, the Netherlands

Abstract One of the most sophisticated forms of multidimensional GC is comprehensive two-dimensional GC (GC×GC). Separation and analysis in two dimensions is much more powerful than in one. A retention plane has much more peak capacity than a retention line and so can accommodate much more complex mixtures. Component identification is potentially more reliable because each substance has two identifying retention measures rather than one. Separations are likely to be more structured in two dimensions, leading to recognizable patterns characteristic to the mixture source.

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