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Effect of Sample and Incident Beam Areas on Quantitative Spectroscopy

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Abstract:

Quantitative spectroscopy is based upon the Bouguer-Lambert-Beer law, often referred to as Beer's law, which is expressed as:



A = log(I 0/I) = abc       (1)



where A is the absorbance, I 0 is the background intensity, I is the intensity measured with the sample present, a is the absorptivity, b is the sample thickness, and c is the sample concentration.

Keywords: FT-IR/internal reflection spectroscopy; Quantitative spectroscopy

Document Type: Short Communication

DOI: http://dx.doi.org/10.1366/0003702944029956

Affiliations: Department of Metallurgical Engineering, University of Utah, Salt Lake City, Utah 84112

Publication date: July 1, 1994

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