Abstract
CRUDE petroleum and the refined oils obtained from it fluoresce strongly in ultra-violet light. This property has recently been utilized for the differentiation of various types of crudes from one another and from refined oils or artificial mixtures prepared to resemble natural crudes1, 2, 3. The oil is either dissolved in a non-fluorescent solvent or spotted on a filter paper and fluorescence noted. Several crude oils from a particular field, some samples of refined oils, and two artificial crudes were examined using a Hanovia Universal fluorescence lamp as the source of ultraviolet light. The samples of refined oils could be readily distinguished from the crudes; but only minor differences were observed between the real and artificial crudes.
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References
Bentz and Strobel, Proc. World Petroleum Congress, Vol. 1, 334 (1933).
Balada, Petroleum, 31, No. 48, 11 (1935).
Fabian, Oel. u. Kohle, 39, 631 (1943).
Grader, Oel. u. Kohle, 38, 867 (1942).
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MUKHERJEE, J., INDRA, M. A Method of Differentiation of Crude Oils based on Chromatography, Capillary Analysis and Fluorescence in Ultra-violet Light. Nature 154, 734–735 (1944). https://doi.org/10.1038/154734a0
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DOI: https://doi.org/10.1038/154734a0
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