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Proceedings Paper

Spectroscopic properties of petroleum products in solution for in-situ analysis of oil contaminations
Author(s): Hans-Gerd Loehmannsroeben; Christopher Kauffmann; Thomas Roch
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Paper Abstract

Extending our stationary fluorescence and absorption measurements of petroleum products in cyclohexane solution, time-resolved measurements of the fluorescence decay are presented in this paper. Several parameters suitable for the description of fluorescence decay curves of petroleum products are discussed in detail. Measurements of time- resolved emission spectra indicate an emission-wavelength dependence of the decay curves. We have found that the fluorescence emission of petroleum products is significantly influenced by oxygen. Applying a Stern-Volmer analysis it is possible to obtain Stern-Volmer constants Ksv and quenching constants kq for the quenching of the petroleum product fluorescence by molecular oxygen. In addition, the excitation-wavelength dependence of stationary fluorescence as well as the concentration dependence of the effective extinction coefficients have been investigated.

Paper Details

Date Published: 23 May 1997
PDF: 10 pages
Proc. SPIE 3107, Remote Sensing of Vegetation and Water, and Standardization of Remote Sensing Methods, (23 May 1997); doi: 10.1117/12.274739
Show Author Affiliations
Hans-Gerd Loehmannsroeben, Friedrich-Alexander-Univ. Erlangen-Nuernberg (Germany)
Christopher Kauffmann, Friedrich-Alexander-Univ. Erlangen-Nuernberg (Germany)
Thomas Roch, Friedrich-Alexander-Univ. Erlangen-Nuernberg (Germany)

Published in SPIE Proceedings Vol. 3107:
Remote Sensing of Vegetation and Water, and Standardization of Remote Sensing Methods
Giovanna Cecchi; Torsten Lamp; Rainer Reuter; Konradin Weber, Editor(s)

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