STP863

    Synchronous-Excitation Fluorescence Applied to Characterization of Phenolic Species

    Published: Jan 1985


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    Abstract

    Synchronous-excitation fluorescence (SEF) spectroscopy promises to be a quick, sensitive, and highly selective technique for the determination of hazardous contaminants. This work concentrates on detection of the phenols that pervade many areas of everyday life. Phenols frequently found in streams and groundwater as industrial pollutants also result as degradation products of green plants. The primary concern for these phenols is their known carcinogenic nature. In conjunction with derivative spectroscopy, synchronous-excitation fluorescence detects phenols in the parts per billion range and discriminates between common variants. By scanning the excitation and emission monochromotors with a 3-nm offset between them, each phenol species is characterized by a single peak. The water-Raman band, the prime interference at dilute concentrations in normal fluorescence, is also eliminated with the synchronous technique. Further, when derivatization is applied to the data, isomers, whose synchronous peaks occur within 5 nm of one another, can be separated from a mixture.

    Keywords:

    fluorescence, phenols, spectroscopy, synchronous-excitation fluorescence, derivative spectroscopy, limits of detection


    Author Information:

    Purcell, FJ
    Manager of applications laboratory, spectrometers specialist, and manager of laboratory equipment division, SPEX Industries, Inc., Edison, NJ

    Kaminski, R
    Manager of applications laboratory, spectrometers specialist, and manager of laboratory equipment division, SPEX Industries, Inc., Edison, NJ

    Obenauf, RH
    Manager of applications laboratory, spectrometers specialist, and manager of laboratory equipment division, SPEX Industries, Inc., Edison, NJ


    Paper ID: STP32773S

    Committee/Subcommittee: E13.06

    DOI: 10.1520/STP32773S


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