Identification of polynuclear aromatic hydrocarbons by Shpol'skii low temperature fluorescence

A Critical Review

“…Preliminary separation of the PAH fractions was achieved by HPLC on reversed phase column. 110 The analysis of specific constituents in complex mixtures of PAH and the resolution of isomers constitute a difficult problem. However, Dickinson and Wehry 111 have reported recently on the successful application of laser-excited, time-resolved fluorescence procedures for the characterization of matrix-isolated PAH mixtures.…”

Recent Advances In Air Pollution Analysis

“…At very low temperatures in specific solvents, PAHs exhibit quasilinear fluorescence spectra and hence by scanning the spectrum, lines due to a number of constituents of a mixture may be separately identified. This has been used with UV excitation to identify methylated forms of pyrene, 316 or with X-ray excitation for a range of compounds. 317 Nitro derivatives of some PAH in air particulates have been separated by thin layer chromatography and characterized by fluorescence quenching.…”

Laser-excited Shpol'skii spectroscopy for the selective excitation and determination of polynuclear aromatic hydrocarbons

“…In addition, the number of lines in the multiplets, their relative intensities, and wavelengths depend on such parameters as the choice of host (40,44), cooling rate (45,46), matrix tanperature (47), excitation wavelength The dependency of Shpol'skii effect spectra on concentrations has also been of great concern in the past (49,(57)(58)(59)(60). Typically, two kinds of concentration behaviors of quasilinear spectra have been observed.…”