@article{Andreev_Pashkevich_Bryankin_Belov_Kambur_Kapustin_Zhuravkov_2022, title={A Comprehensive Approach to Investigating Fluorine-Bearing Gas Mixtures}, volume={24}, url={https://ect-journal.kz/index.php/ectj/article/view/1472}, DOI={10.18321/ectj1472}, abstractNote={<p>An integrated method is proposed for examining the compositions of fluorine-bearing gaseous mixtures, which allows for determining the concentration of HF, F<sub>2</sub>, N<sub>2</sub>, O<sub>2</sub>, CO<sub>2</sub>, CF<sub>4</sub>, and C<sub>2</sub>F<sub>6</sub> in these mixtures. The concentration of hydrogen fluoride is determined by its sorption on sodium fluoride followed by the determination of the fluoride ion by the potentiometric method. The lower threshold of determination of hydrogen fluoride is found to be 0.09 vol.%. The concentrations of N<sub>2</sub>, O<sub>2</sub>, CO<sub>2</sub>, CF<sub>4</sub>, and C<sub>2</sub>F<sub>6</sub> are determined by the gas chromatographic method using a thermal conductivity detector. The proposed gas-chromatography method offers a quantitative measurement of the concentration of N<sub>2</sub>, O<sub>2</sub>, CO<sub>2</sub>, CF<sub>4</sub>, and C<sub>2</sub>F<sub>6</sub> at the lower limits of detection of 0.008, 0.012, 0.011, 0.009, and 0.019 vol.%, respectively. Based on the developed method, the compositions of a standard fluorine-nitrogen (10 vol.%) and anodic gas samples, synthesized in a laboratory electrolyzer at the National Research Tomsk Polytechnic University and in an industrial electrochemical reactor at JSC Siberian Chemical Plant (Russia), are studied.</p>}, number={4}, journal={Eurasian Chemico-Technological Journal}, author={Andreev, A.A. and Pashkevich, D.S. and Bryankin, D.V. and Belov, N.A. and Kambur, P.S. and Kapustin, V.V. and Zhuravkov, S.P.}, year={2022}, month={Dec.}, pages={287‒294} }