Abstract
A significant enhancement in the spectral resolution of polyaromatic hydrocarbon (PAH) mixtures was obtained with low-temperature constant energy synchronous fluorescence spectrometry (LTCESFS) measurements at 77K. Spectral separation of mixtures of PAH isomers and PAH alkyl homologues were achieved by LTCESFS analysis. Constant energy differences from 1400 cm/sup -1/ to 2000 cm/sup -1/ were used for scanning. LTCESFS provided a simple, selective, and inexpensive method for the evaluation of PAH isomeric mixtures and PAH alkyl homologue mixtures. 23 references, 4 figures, 1 table.
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