The selectivity of the Shpol'skii fluorescence analytical technique, using real samples, is shown and is In some cases compared with that of fluorescence at room temperature. Reversed-phase high-performance liquid chromatography (HPLC) was used to separate the sample Into fractions and glass capillary gas chromatography [(GC)2] of each fraction was performed in order to quantify the content of polynuclear aromatic hydrocarbons (PAHs). The Shpol'skii fluorescence spectra of some PAHs are shown to be distinct and predominant even though the concentration of the compound In question is relatively small.

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