Abstract
The polycyclic aromatic hydrocarbon (PAH) content of coal liquefaction products and other liquid fuels is usually assessed by measuring the benzo(a)pyrene content. In Shpol'skii effect spectrometry, PAHs and their deuterated analogues exhibit adequately resolved characteristic quasi-line spectra. The authors have used deuterated benzo(a)pyrene and perylene as externally added internal reference compounds to facilitate the direct determination of benzo(a)pyrene and perylene in liquid fuels.
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