Objective Criteria for Absorbance Subtraction

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Abstract:

Using an iterative linear least-squares algorithm it is possible to selectively subtract known spectral components from a mixture in an automated procedure. The proposed approach circumvents the subjective decisions encountered with interactive real-time graphics programs and enables simultaneous removal and/or optimization of scaling coefficients of multiple known pure components in order to yield the difference spectrum.

Keywords: Computer; FT-IR; Infrared; Spectroscopy; Subtraction

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702844555610

Affiliations: Department of Macromolecular Science, Case Western Reserve University, Cleveland, Ohio 44106

Publication date: May 1, 1984

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