Abstract

Liquid chromatography coupled with Fourier transform infrared specrometry (FT-IR) was applied to the analysis of impurities in a sample of synthesized 1-choropyrene. The method was used to identify compounds with closely related structures in addition to gas chromatography-mass spectrometry. All previously detected components were separated and the corresponding FT-IR spectra were recorded. The presence of pyrene and 1-chloropyrene was confirmed by comparison with reference spectra. 1,3,6-trichloropyrene and the isomers 1,3-, 1,6- and 1,8-dichloropyrene were identified by interpretation of the spectra.