Identification of crude oils by synchronous excitation spectrofluorimetry

The factors influencing the technique of synchronous excitation fluorimetry have been elucidated. Those factors germane to the identification of crude oils--namely, solvent, wavelength increment, concentration, temperature, and frequency bandpass--have been evaluated. The enhanced details in synchronous excitation fluorescence spectra allow firm conclusions to be drawn concerning the identity of an unweathered crude oil sample. Taken in conjunction with the advantages inherent in conventional fluorimetry, this technique shows great promise as a diagnostic tool for the identification of oil spillages in the marine environment.