In pyrolysis gas chromatography an aluminacolumn and TCD/FID detectors in series are used. H2 and C1 -C6 hydrocarbons in the pyrolysis products can be simultaneously measured for one sample input.
The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.