Automatic analysis of mixed spectra

Evans, J. C. and Morgan, Peter Huw ORCID: https://orcid.org/0000-0002-8555-3493 1981. Automatic analysis of mixed spectra. Analytica Chimica Acta 133 (3) , pp. 329-338. 10.1016/S0003-2670(01)83205-0

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Abstract

A new technique is described for estimating the pure component spectra from a set of linearly independent spectra. The process is one of generalised spectral subtraction in which an iterative combination of multivariate linear least-squares analysis and matrix transformation is applied to the input data to give estimates of the number of independent components in the original mixed spectra. This technique is applicable to bipolar data (e.g. from e.p.r. spectra) as well as absorption spectra determined by any spectroscopic technique, provided that the spectra may be reasonably assumed to be an additive mixture of unknown pure components. Numerical model examples are given together with an experimental application to electron spin resonance.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Business (Including Economics) Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Elsevier
ISSN:	0003-2670
Last Modified:	21 Oct 2022 09:49
URI:	https://orca.cardiff.ac.uk/id/eprint/37835

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