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Proceedings Paper

Quantitative analysis of aqueous solutions by FTIR spectroscopy of dry extract
Author(s): N. Dupuy; M. Meurens; B. Sombret; P. Legrand
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Paper Abstract

Continuing the approach adopted by Meurens et al. in dispersive NIR spectroscopy, the principle of using dry extracts is taken up in FTIR spectroscopy, yielding three advantages: the rapidity of Fourier transform spectroscopy, the solvent elimination, and a better peak resolution in the mid-IR. However, sampling appears more difficult in mid-IR than in NIR spectroscopy. In mid-IR spectroscopy, particular dry extract problems are: (1) the nature and the choice of the support, (2) the reproducibility of the signal, and (3) the feasibility of quantitative analysis. The performances of our dry-extract method are required here in terms of spectroscopy as well as of a multicomponent quantitative analysis of mixed sugars in aqueous solutions.

Paper Details

Date Published: 1 March 1992
PDF: 2 pages
Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); doi: 10.1117/12.56375
Show Author Affiliations
N. Dupuy, Univ. des Sciences et Techniques de Lille Flandres (France)
M. Meurens, Univ. Catholique de Louvain (Belgium)
B. Sombret, Univ. des Sciences et Techniques de Lille Flandres (France)
P. Legrand, Univ. des Sciences et Techniques de Lille Flandres (France)

Published in SPIE Proceedings Vol. 1575:
8th Intl Conf on Fourier Transform Spectroscopy
Herbert Michael Heise; Ernst Heiner Korte; Heinz W. Siesler, Editor(s)

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