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Synthesis and Analytical Characteristics of New Membrane Materials for Thallium(I) Selective Sensors

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

The most optimal membrane samples were synthesized, tested, and selected and a comprehensive study of the transport and analytical parameters of membrane materials for potentiometric sensors based on chalcogenide glasses in the TlI–Ag2Se–As2Se3 system was conducted. Thallium-selective sensor samples with membranes of the composition: 20 mol % TlI–30 mol % Ag2Se–50 mol % As2Se3 and 25 mol % TlI–25 mol % Ag2Se–50 mol % As2Se3, demonstrated the best parameters of the electrode function (57–58 mV/pTl), a detection limit of 3 × 10–6 M, and the best characteristics of selectivity with respect to a number of heavy metal cations.

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Funding

This work was carried out with partial financial support from the Russian Science Foundation (project no. 20-13-00143).

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Authors and Affiliations

  1. St. Petersburg State University, 199034, St. Petersburg, Russia

    D. S. Kalyagin, I. V. Smirnov, M. D. Karavan, V. V. Eremin, E. A. Verkhovskaya, E. O. Kalinin & Yu. E. Ermolenko

  2. Khlopin Radium Institute, 194021, St. Petersburg, Russia

    D. S. Kalyagin, I. V. Smirnov, M. D. Karavan & E. A. Verkhovskaya

Authors
  1. D. S. Kalyagin
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  2. I. V. Smirnov
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  3. M. D. Karavan
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  4. V. V. Eremin
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  5. E. A. Verkhovskaya
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  6. E. O. Kalinin
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  7. Yu. E. Ermolenko
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Contributions

Yu.E. Ermolenko, I.V. Smirnov proposed the purpose of the work and the experimental technique; D.S. Kalyagin and M.D. Karavan synthesized samples and carried out potentiometric studies; E.A. Verkhovskaya and V.V. Eremin carried out studies by the method of impedance spectroscopy using the Novocontrol Concept 40 installation; D.S. Kalyagin and E.O. Kalinin carried out experiments on X-ray phase analysis and electron microscopy.

Corresponding author

Correspondence to Yu. E. Ermolenko.

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The authors declare that they have no conflicts of interest warranting disclosure in this article.

Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 9, pp. 1045–1048, January, 2021 https://doi.org/10.31857/S0044461821090048

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Kalyagin, D.S., Smirnov, I.V., Karavan, M.D. et al. Synthesis and Analytical Characteristics of New Membrane Materials for Thallium(I) Selective Sensors. Russ J Appl Chem 94, 1222–1225 (2021). https://doi.org/10.1134/S1070427221090044

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  • DOI: https://doi.org/10.1134/S1070427221090044

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