METHOD AND APPARATUS FOR COMPARING SPECTRA

The multiple linear least squares regression method of determining the concentration of an analyte from a spectrum of an unknown mixture containing the analyte is improved. It is known to combine spectra of individual components of the mixture to derive a model which is then applied to the unknown s...

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Bibliographic Details
Main Authors IVALDI, JUAN, HOULT, ROBERT, SPRAGG, RICHARD, TRACY, DAVID H
Format Patent
LanguageEnglish
Published 21.04.1993
Edition5
Subjects
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Summary:The multiple linear least squares regression method of determining the concentration of an analyte from a spectrum of an unknown mixture containing the analyte is improved. It is known to combine spectra of individual components of the mixture to derive a model which is then applied to the unknown spectrum. In accordance with this invention, first, and possibly higher, derivatives of the unknown spectrum are also generated and included in the derived model.
Bibliography:Application Number: EP19920116913