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A Method for Background Reduction in IR Spectroscopy

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The accuracy in quantitative and qualitative analysis of IR spectra of coals by the transmission method has been limited. This is because the IR transmission spectra of coals possess large background interferences. In this note, we report a method for reducing background, thus allowing an increase in the precision of quantitative analysis by the IR transmission method. In our observation, an IR scattering filter proved to reduce the background remarkably.

Keywords: Baseline; Coal; FT-IR; IR scattering filter, Background; Transmission method

Document Type: Short Communication


Affiliations: 1: Analysis Research Department, Advanced Technology Research Center, NKK (Nippon Kokan), 1-1 Minami Watarida-cho, Kawasaki-ku, Kawasaki, 210 Japan 2: Department of Industrial Chemistry, Faculty of Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113 Japan

Publication date: January 1, 1989

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