Abstract
A rapid HPLC procedure is introduced that allows the quantification of polycyclic aromatic hydrocarbons (PAH) in the exhaust gases of direct injecting Diesel engines. A branch stream of the motor exhaust gas is passed through a cooler and a filter. Then the cooler rinsing phase and the soot collected on the filter are extracted with toluene. The clean-up is carried out by solid phase extraction and thin-layer chromatography. Using this method, which is reproducible with high precision, a great number of samples may be analysed in a cost and time efficient manner, even when other rapid procedures fail.
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