Oil-matching by using a simple vector model for fluorescence spectra

A digitized fluorescence spectrum containing n points may be considered as a vector in n-dimensional space. This concept is used to develop a vector model employing angular distance in n-space as parameter for comparison of fluorescence spectra of weathered oil. The vector model is applied to the pr...

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Bibliographic Details
Published in:Talanta (Oxford) 1981, Vol.28 (1), p.1-6
Main Authors: Killeen, Timothy J., Eastwood, DeLyle, Hendrick, Martha Schulz
Format: Article
Language:English
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Summary:A digitized fluorescence spectrum containing n points may be considered as a vector in n-dimensional space. This concept is used to develop a vector model employing angular distance in n-space as parameter for comparison of fluorescence spectra of weathered oil. The vector model is applied to the problem of forensic oil-identification, by comparing the spectra of oil-spill samples with the spectra of unweathered and laboratory-weathered oils through likely suspects. The vector representing the oil-spill spectrum is projected on the hyperlane formed by the spectra of the unweathered and corresponding laboratory-weathered oils to locate the vector which has the smallest angular deviation from the spill vector (“best fit”).
ISSN:0039-9140
1873-3573
DOI:10.1016/0039-9140(81)80129-4