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SummaryGas chromatography (GC), low-voltage mass spectrometry (LV MS), and gas chromatography/mass spectrometry (GUMS) have been used for detecting polycyclic aromatic hydrocarbons (PAH) of molecular weight between 300 and 402 in airborne particulate matter. Nearly 200 high molecular PAH separated by fused silica capillary columns could be characterized by their El mass spectra. The lack of reference substances precluded further structure elucidation.

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