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An Attachment to an IR Fourier Spectrometer for Registering IR Spectra of Liquids in the Vapor Phase

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Abstract

The article reports on the development of a new attachment for IR spectrometers that is designed to record the IR spectra of liquids in the vapor phase. The attachment is a heated gas cell with a syringe injector for liquid samples on its body as well as two gas taps for cleaning the attachment after registering the spectrum by purging it with an inert gas. The attachment is designed for quantitative studies using the IR spectroscopy method. An example of measuring the concentration of methanol in aqueous solutions is used to show that the metrological characteristics of the quantitative chemical analysis of liquids by IR spectroscopy are improved by eliminating the “solvent effect.” Compared to the ATR method, the authors managed to expand the range of measured methanol concentrations from 1–30 wt% to 0.03–100 wt% without using the sample preparation procedure.

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Funding

This study was supported by the Russian Foundation for Basic Research, project no. 18-43-860005.

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Authors and Affiliations

  1. Khanty-Mansiysk State Medical Academy, 628010, Khanty-Mansiysk, Khanty-Mansi Autonomous okrug Yugra, Russia

    D. S. Nekhorosheva

  2. Yugra State University, 628012, Khanty-Mansiysk, Khanty-Mansi Autonomous okrug Yugra, Russia

    D. S. Nekhorosheva, Kh. B. O. Tagi-zade & L. S. Klimenko

Authors
  1. D. S. Nekhorosheva
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  2. Kh. B. O. Tagi-zade
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  3. L. S. Klimenko
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Corresponding author

Correspondence to D. S. Nekhorosheva.

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The authors declare that they have no conflicts of interest.

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Translated by A. Seferov

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Nekhorosheva, D.S., Tagi-zade, K.B. & Klimenko, L.S. An Attachment to an IR Fourier Spectrometer for Registering IR Spectra of Liquids in the Vapor Phase. Instrum Exp Tech 65, 456–460 (2022). https://doi.org/10.1134/S0020441222030034

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  • DOI: https://doi.org/10.1134/S0020441222030034

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