Quantitative analysis of aqueous solutions by FTIR spectroscopy of dry extract

N. Dupuy; M. Meurens; B. Sombret; P. Legrand

doi:10.1117/12.56375

1 March 1992 Quantitative analysis of aqueous solutions by FTIR spectroscopy of dry extract

N. Dupuy, M. Meurens, B. Sombret, P. Legrand

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56375
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

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.

Citation Download Citation

N. Dupuy, M. Meurens, B. Sombret, and P. Legrand "Quantitative analysis of aqueous solutions by FTIR spectroscopy of dry extract", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56375

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