Phosphorimetric determination of polynuclear aromatic hydrocarbons in gasoline

The possibility of determining pyrene, anthracene, and fluorene in gasoline by phosphorimetry at room temperature after the micellar extraction with sodium dodecyl sulfate was examined. It was found that the above polynuclear aromatic hydrocarbons simultaneously present in gasoline can be selectively determined by room-temperature phosphorimetry using different techniques for the excitation and population of the triplet states of luminophore (stationary and pulse excitation and triplet energy transfer). The proposed procedure was verified by gas chromatography with a mass-selective detector.