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DEVELOPMENT OF AN ION-SELECTIVE MEMBRANE FOR THE DETERMINATION OF COBALT IONS IN MULTICOMPONENT COMPLEX MIXTURES

Authors

Jo’raqul Begimkulov, Abdurakhmanov Ergashboy, G’ulom Abdurakhmanov, Zamira Abdurakhmonova

Rubric:Chemistry
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This study presents the development of an ion-selective membrane for the determination of cobalt ions in multicomponent complex mixtures. The optimal composition of the membrane components, their ratio, and the optimum conditions for the synthesis process were established. The composition and structural characteristics of the synthesized materials were investigated using modern analytical techniques. The developed ion-selective membrane is intended for use in an ion-selective electrode for the selective determination of cobalt ions in complex multicomponent mixtures.

Keywords

ion-selective electrode
cobalt ion
selective membrane
dodecatungstophosphoric acid
electroactive compound
ionophore

Authors

Jo’raqul Begimkulov, Abdurakhmanov Ergashboy, G’ulom Abdurakhmanov, Zamira Abdurakhmonova

References:

Smirnova A.L., Khitrova V.L., Shvake A. Membranes for ion-selective electrodes containing a neutral carrier and ionogenic groups of opposite charge // Ion Exchange and Ionometry (Collection of Papers) – 2000, Vol. 10, pp. 201–214.

Ceresa A., Sokalski T., Pretsch E. Influence of key parameters on the lower detection limit and response function of solvent polymeric membrane ion-selective electrodes // J. Electroanalyt. Chem. – 2001, Vol. 501, No. 1, pp. 70–76.

Matveichuk Yu.V., Rakhmanko E.M. Application of Zn(NCS)₄²⁻- and Co(NCS)₄²⁻-selective electrodes in the analysis of natural samples and food products // Journal of Analytical Chemistry. – 2016, Vol. 71, No. 5, pp. 513–518. DOI: 10.7868/S0044450216030075.

Kharitonov S.V. Electrochemical characteristics of ion-exchange membranes selective to sulfonamide drug anions // Electrochimica Acta (Elektrokhimiya). – 2001, Vol. 37, No. 12, pp. 1490–1495.

Matveichuk, Yu.V. New Molybdate- and Tungstate-Selective Membrane Electrodes Based on Higher Quaternary Ammonium Salts with Varying Steric Accessibility of the Exchange Center / Yu.V. Matveichuk, E.M. Rakhmanko, V.V. Zhilko // Methods and Objects of Chemical Analysis. – 2017. – Vol. 12, No. 1. – P. 24–30. DOI:10.17721/moca.2017.24-30.

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