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Journal of Analytical Chemistry

, Volume 71, Issue 5, pp 490–495 | Cite as

Application of Zn(NCS) 4 2- and Co(NCS) 4 2- -selective electrodes to the analysis of natural objects and foods

  • Yu. V. MatveichukEmail author
  • E. M. Rakhman’ko
Articles
  • 35 Downloads

Abstract

Concentrations of zinc and cobalt in beer, mineral water, beets, cheese, potatoes, and soil are determined by potentiometry, using film Zn(NCS) 4 2- and Co(NCS) 4 2- -selective electrodes based on higher quaternary ammonium salts. The developed electrodes enable the determination of zinc and cobalt in concentrations lower than their maximum permissible concentrations (MPCs). The procedures do not require complex or long sample preparation or expensive equipment. The results agree well with the data of atomic emission spectrometry and atomic absorption spectrometry.

Keywords

potentiometry higher quaternary ammonium salts Zn(NCS)42- and Co(NCS)42-selective electrodes beer beets mineral water cheese potatoes soil 

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  1. 1.Faculty of Chemical EngineeringMogilev State University of Food TechnologiesMogilevBelarus
  2. 2.Faculty of ChemistryBelarusian State UniversityMinskBelarus

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