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The Measurement of Resonance Raman Spectra of Fluorescent Aromatic Hydrocarbons

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Although resonance Raman spectra have been reported for a wide range of inorganic and organic compounds, the latter including important biological materials, no results are available for one potentially interesting group of substances, polycyclic aromatic hydro-carbons. Presumably the fact that with these materials the Raman exciting wavelength also produces strong visible fluorescence has proved a considerable practical problem. The work now reported has been concerned primarily with methods for suppressing this fluorescence and also with the choice of the optimum exciting wavelength, because a preliminary series of measurements showed that this is also an important factor in achieving a good signal/noise ratio. During the course of this limited study sufficient results have been obtained to suggest that the resonance Raman spectra of this group of compounds offer interesting analytical possibilities.

Keywords: Fluorescence quenching agents; Polycyclic aromatic hydrocarbons; Resonance Raman spectroscopy

Document Type: Short Communication


Affiliations: Epsom Division, Group Research and Development Department, The British Petroleum Co., Ltd., Great Burgh, Epsom, Surrey, England

Publication date: September 1, 1976

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