Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Determination of Water Content in Ethanol by Miniaturized Near-Infrared (NIR) System

  • Cho, Soo-Hwa (Department of Chemistry, College of Natural Sciences, Hanyang University) ;
  • Chung, Hoe-Il (Department of Chemistry, College of Natural Sciences, Hanyang University) ;
  • Woo, Young-Ah (College of Pharmacy, Dongduk Women's University) ;
  • Kim, Hyo-Jin (College of Pharmacy, Dongduk Women's University)
  • Published : 2005.01.20
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Abstract

The miniaturized NIR (Near-infrared) spectrometer has been utilized for the determination of water content (1-19% range) in ethanol that is the most popular organic solvent in pharmaceutical industries. It has many potential capabilities that can replace the conventional analyzers especially for the on-line measurement since it is compact, versatile and cost-effective. By using two dimensional (2D) correlation spectroscopy, it was preliminarily investigated to find any unforeseen spectral distortion among the spectra collected from the miniaturized spectrometer. The 2D study revealed that the spectral variation clearly followed the variation of water concentration without any spectral distortion or abnormality. PLS (Partial Least Squares) was employed to build the calibration model and the resulting prediction performance was acceptable and stable over several days. Even though the miniaturized NIR system was evaluated to fairly simple chemical matrix, the overall study demonstrates the sufficient feasibility for diverse practical and industrial applications.

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References

  1. Burns, D. A.; Ciurczak, E. W. Handbook of Near-Infrared Analysis; Marcel Dekker Inc., New York, 1992
  2. Wetzel, D. L. Anal. Chem. 1983, 55, 1165A https://doi.org/10.1021/ac00262a001
  3. Kamat, M. S.; Lodder, R. A.; DeLuca, P. P. Pharm. Res. 1989, 6, 961 https://doi.org/10.1023/A:1015997530367
  4. Broad, N. W.; Jee, R. D.; Moffat, A. C.; Eaves, M. J.; Mann, W. C.; Dziki, W. Analyst 2000, 125, 2054 https://doi.org/10.1039/b006789j
  5. Woo, Y. A.; Kim, H. J. Useful and Advanced Information in the field of Near Infrared Spectroscopy; Research Signpost: Kerela, India, 2003; chap. 14
  6. Mark, H. Anal. Chem. 1986, 58, 2814 https://doi.org/10.1021/ac00126a051
  7. Lee, S. H.; Nam, J. J.; Son, B. M. Bulll. Korean Chem. Soc. 2003, 24(2), 246 https://doi.org/10.5012/bkcs.2003.24.2.246
  8. Haaland, D. M.; Thomas, E. V. Anal. Chem. 1988, 60, 1202 https://doi.org/10.1021/ac00162a021
  9. Martens, H.; Naes, T. M. Multivariate Calibration; John Wiley and Sons: New York, 1989
  10. Beebe, K. R.; Pell, R. J.; Seasholtz, M. B. Chemometrics: A Practical Guide; John Wiley and Sons: New York, 1998
  11. Noda, I. Appl. Spectrosc. 1993, 47, 1329 https://doi.org/10.1366/0003702934067694
  12. Noda, I.; Dowrey, A. E.; Marcott, C.; Story, G. M.; Ozaki, Y. Appl. Spectrosc. 2000, 54, 236A https://doi.org/10.1366/0003702001950454
  13. Noda, I. Appl. Spectrosc. 2000, 54, 994 https://doi.org/10.1366/0003702001950472
  14. Thomas, E. V.; Haaland, D. M. Anal. Chem. 1990, 62, 1091 https://doi.org/10.1021/ac00209a024
  15. Adachi, D.; Katsumoto, Y.; Sato, H.; Ozaki, Y. Appl. Spectrosc. 2002, 56, 357 https://doi.org/10.1366/0003702021954728
  16. Chung, H.; Lee, J. S.; Ku, M. S. Appl. Spectrosc. 1998, 52, 885 https://doi.org/10.1366/0003702981944436

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