A simple and rapid method for the comparative identification of oil spills with suspect source oils is described using fluorescence spectroscopy. The method involves the excitation of an oil, diluted in cyclohexane, at a distinct wavelength and obtaining a “fingerprint” in the form of an emission spectrum. Contamination and weathering of the environmental oil is considered. The method is applied to two different oil spills occurring near the same area at about the same time. Results are confirmed by gas chromatography.

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Pediatric Pharmacy Advocacy Group
1973