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Bulletin of the Korean Chemical Society v.26 no.1, 2005년, pp.115 - 118   피인용횟수: 3

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  );
  • 초록

    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.


  • 주제어

    Near-infrared spectroscopy .   Miniaturized spectrometer .   Ethanol solution .   2D correlation spectroscopy.  

  • 참고문헌 (16)

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  • 이 논문을 인용한 문헌 (3)

    1. 2006. "" Bulletin of the Korean Chemical Society, 27(12): 2058~2060     
    2. 2006. "" Bulletin of the Korean Chemical Society, 27(12): 2101~2103     
    3. 2014. "" Journal of biosystems engineering : JBE, 39(3): 184~193     

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  • 우영아 (16)

  • 김효진 (59)

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