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Proceedings Paper

Multicomponent Quantitative Analysis In Systems Not Obeying Beer's Law; The Use Of Curve Fitting With Multiple Standards
Author(s): M. A . Ford; R.. A . Spragg
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Paper Abstract

Quantitative analysis of multicomponent systems is often hindered by deviations from linear Beer's Law behaviour. Attempts to accommodate non-linearity have generally assumed some explicit relationship between absorbance and concentration,l. An alternative approach is to consider the deviations from Beer's Law as arising from a series of additional spectral components. Such a model has obvious physical significance when there are specific interactions between the components in a mixture, and may prove a useful approximation in any situation. On the basis of this model it will be shown that least squares curve fitting can give accurate quantitative results even when there are gross deviations from Beer's Law.

Paper Details

Date Published: 20 December 1985
PDF: 2 pages
Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); doi: 10.1117/12.970772
Show Author Affiliations
M. A . Ford, Perkin-Elmer Limited (England)
R.. A . Spragg, Perkin-Elmer Limited (England)

Published in SPIE Proceedings Vol. 0553:
Fourier and Computerized Infrared Spectroscopy
David G. Cameron; Jeannette G. Grasselli, Editor(s)

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