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Spectrofluorymetry in application to oil-in-water emulsion characterization

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EN
Abstrakty
EN
The question of identifying the type of oil in exploitation of engine room is associated with both the quality of ship consumables (fuels and lubricants) and the composition and origin of oil in settling tanks or in dumping water. Related issue is the possibility of determining the origin of oil, which is detected in the marine environment. The key question is how oils vary in their ability to fluorescence, understood as the shapes of fluorescence spectra obtained for different wavelengths of light exciting fluorescence. In this paper we present spectra of fluorescence for six chosen oils. Those oils were previously dispersed (emulsified) in the seawater, then extracted into hexane. Fluorescence spectra were obtained using fluorescence spectrometer Perkin Elmer LS55, for excitation wavelengths in the range from 240 nm to 500 nm, and emission wavelengths from 300 nm to 790 nm. In this paper there is shown that in general both total intensity of fluorescence and shapes of spectra of fluorescence depend on the excitation wavelength and are differ for various kinds of oil. In order to visually show the differences in fluorescence abilities of various oils, the results of measurement were placed on a chart of fluorescence intensities in the function of both variables: the excitation wavelength and the emission wavelength (so called the total fluorescence spectra). Analyses of results of the described studies confirm that the different oils fluoresce differently and identification of type of oil is possible by fluorescence spectrophotometry.
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autor
  • Gdynia Maritime University, Department of Physics Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 6901385, fax: +48 58 6206701, zotremba@am.gdynia.pl
Bibliografia
  • [1] HELCOM, Baltic Marine Protection Commission, Response Group.
  • [2] http://www.helcom.fi/groups/response/en_GB/main/
  • [3] Lakowicz, J. R. Principles of Fluorescence Spectroscopy, Springer 1999.
  • [4] Yuzhakov, V. I. Patsayeva, S.V., Application of fluorescence synchronous spectra for oil pollution identification, Proc. Oceans Engineering for Today's Technology and Tomorrow's Preservation (OCEANS '94), Vol. 3, pp. 308-312, 1994.
  • [5] Otremba, Z., Targowski, W., Toczek, H., Fluorescence as a scanning method for oil type identification in the sea environment, Proc. The 3-rd Safety and Reliability International Conference, pp. 293-298, Gdynia 2003.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ5-0040-0041
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