Automatic Triparametric Recording in Fluorometry of Polynuclear Hydrocarbons.

Fluorescence excitation–emission matrix (EEM) spectroscopy and cavity ring-down (CRD) absorption spectroscopy of oil-contaminated jet fuel using fiber-optic probes

“…4 The emission intensity as a function of both excitation and emission wavelengths can be presented by a three-dimensional response feature, which may be visualized as a topographical map. 5 The representation of the whole three-dimensional intensity matrix realises the full potential of the fluorescence technique. Cross-sections of this excitation/emission matrix at fixed excitation wavelengths and at fixed emission wavelengths are, respectively, standard single line emission and excitation spectra.…”

Fluorometric Analysis

“…The identification and determination of polynuclear aromatic hydrocarbons as residues in foods has been reviewed (75). A novel approach to improved specificity in such analyses by Schachter and Haenni consists of oscillographic recording of the fluorescence intensity as a function of both the emission and the excitation wavelengths (376). Another approach is separation by thin layer chromatography, which was applied to complex mixtures of these substances, as encountered in air pollutants, with special reference to the fluorometric determination of 3,4-benzopyrene (368).…”