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Dynamic methods for calibration and verification of the metrological characteristics of instruments intended for gas analysis (generalized approach)

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Abstract

A systematic approach to the metrological provision (MP) of gas-analytical measurements in the range of microconcentrations (trace analysis) using dynamic and static control facilities is described. Results of investigations and development of the methods and facilities for continuous preparation of reference gas mixtures (RGMs) for the MP of commercial chromatographs, chemical sensors, and other instruments and devices for gas analysis are presented, including data on the capacity of adsorbents, parameters of sampling adsorption tubes, regimes of sorption and desorption, creation and maintenance of gas mixtures with preset compositions in testing chambers for toxicological investigations. Methodological and technical problems of MP in the field of trace analysis are considered. The main dynamic methods of preparation of the RGMs by flow mixing, diffusion leak, and exponential dilution of initial gases are described. Examples of the new generation of new “smart” systems of the Mikrogaz-F type intended for the RGM preparation in the range of microconcentrations are presented.

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Authors and Affiliations

  1. Kirovo-Chepetsk Chemical Enterprise, Kirovo-Chepetsk, Kirov oblast, 613042, Russia

    Z. L. Baskin

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  1. Z. L. Baskin
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Original Russian Text © Z.L. Baskin, 2007, published in Zavodskaya Laboratoriya. Diagnostika materialov, 2007, Vol. 73, No. 2, pp. 72–78.

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Baskin, Z.L. Dynamic methods for calibration and verification of the metrological characteristics of instruments intended for gas analysis (generalized approach). Inorg Mater 44, 1606–1611 (2008). https://doi.org/10.1134/S0020168508140215

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