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Proceedings Paper

Identification of various alcohols by using FT-IR spectra and their principle component analysis
Author(s): Kaori Sakurai; Tsuyoshi Miura; Yong Liang Liu; Yukihiro Ozaki
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Paper Abstract

The present paper demonstrates the potential of FT-NIR spectroscopy combined with principal component analysis in the identification of various alcohols. Twenty alcohols with the number of carbon atoms between 1 and 8 could be correctly identified in the space built by first and second principal factors, based on the Mahalanobis distance and the residual of NIR spectra between the reference sample and unknown samples. Primary, secondary, and tertiary alcohols, except for methanol, showed specific tendency on location in the space. For the primary alcohols the possibility of distinguishing the alcohols with straight carbon chains from those with branched carbon chains was suggested. The loading coefficient spectra showed that the spectral differences dominated by the number of carbon atom were extracted in the first principal component but the second principal factor had to be used for the correct identification and classification on the type of hydrocarbon chains.

Paper Details

Date Published: 31 January 1994
PDF: 2 pages
Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); doi: 10.1117/12.166657
Show Author Affiliations
Kaori Sakurai, Bran and Luebbe Japan (Japan)
Tsuyoshi Miura, Bran and Luebbe Japan (Japan)
Yong Liang Liu, Bran and Luebbe Japan (Japan)
Yukihiro Ozaki, Kwansei Gakuin Univ. (Japan)

Published in SPIE Proceedings Vol. 2089:
9th International Conference on Fourier Transform Spectroscopy
John E. Bertie; Hal Wieser, Editor(s)

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