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Combinations of Orthogonal Spectra to Estimate Component Spectra in Multicomponent Mixtures

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A factor analysis of a set of spectra of multicomponent mixtures yields n orthogonal spectra where n is the number of components in the mixtures. Combinations of these orthogonal spectra, done so as to eliminate the contributions to the spectra from one of the components, yield a set of n – 1 linearly independent abstract spectra. Repetition of this process is used to estimate the spectrum of each of the components without identifying the range of the n-dimensional vector space in which the solution must fall. Several techniques for estimating the appropriate combinations of orthogonal spectra are compared.

Keywords: Computer, applications; Factor analysis; Infrared

Document Type: Research Article


Affiliations: Department of Chemistry, University of Iowa, Iowa City, Iowa 52242

Publication date: February 1, 1987

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