Micro-Electroanalytical Determination of Potassium in Pharmaceutical and Clinical Samples

Authors

  • MSc. Allan N. Domínguez-Romero Facultad de Química, Universidad Nacional Autónoma de México, D.F.
  • Dr. Arturo J. García-Mendoza Facultad de Química, Universidad Nacional Autónoma de México, D.F.
  • Dr. José A. Baeza-Reyes Facultad de Química, Universidad Nacional Autónoma de México, D.F.

Abstract

Conditions to quantify the amount of potassium in different samples of pharmaceutical and clinical interest by using electrochemical techniques conductimetry, voltammetry and classical polarography were established. Potassium ion concentrations were determined by means of electrochemical signal of Co(III) and Co(II) in AcBS medium after precipitation of potassium cobaltinitrite (K3[Co(NO2)6]). The development of an electroanalytical microcell with an operational minimal volume of 1 mL and three miniaturized electrodes is described as well.

Keywords: cobaltinitrite, voltammetry, conductimetry, polarography, electroanalytical microcell.

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Published

2015-11-02

How to Cite

Domínguez-Romero, M. A. N., García-Mendoza, D. A. J., & Baeza-Reyes, D. J. A. (2015). Micro-Electroanalytical Determination of Potassium in Pharmaceutical and Clinical Samples. Revista Cubana De Química, 26(2), 137–146. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/300

Issue

Vol. 26 No. 2 (2014)

Section

Artículos

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