Pyrolysis Gas Chromatography: A Comparative Study of Different Pyrolyzers

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Abstract
Pyrolysis gas chromatography (PGC) is rapidly gaining acceptance as a method for the characterization of complex organic materials. Many different experimental techniques and methods have been proposed for inducing the thermal fragmentation of the material. In order for PGC to become reproducible on an interlaboratory basis, it is necessary to evaluate and compare the different techniques proposed for thermal fragmentation. The PGC of two model compounds, 2,6,10- and 2,6,11-trimethyldodecane, was investigated with three different pyrolyzers: (1) a capacitive boosted filament heater, (2) rf induction heating of a ferromagnetic wire (Curie point), and (3) a vapor phase flow-through tubular reactor. The pyrolysis product distribution was also calculated assuming a free radical chain process and the results compared to the experimental studies.

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