Determination of osmium in mineral raw materials by the method of kinetic inversion voltammetry

N. A. Kolpakova, O. V. Kaminskaya, E. V. Yagovkina

Research output: Contribution to journalArticle

Abstract

A new hybrid version of inversion voltammetry, the method of kinetic inversion voltammetry (KIV), is proposed and exemplified by an analysis of osmium. Electrooxidation of an Os + OsO2 film, predeposited on the surface of an indifferent electrode, is shown to generate "inverse" peaks in an anodic voltammogram recorded in an acid electrolyte in the presence of hydrogen peroxide. In the KIV method, osmium can be analyzed without preliminary separation of it from a complex matrix. The lower limit for determination of osmium against the background solution 0.1 M H2SO4 + 30% H2O2 is 8 × 10-10 M (sr = 8%). The detection limit (3σ-test) is 4.7 × 10-10 M.

Original languageEnglish
Pages (from-to)225-228
Number of pages4
JournalIndustrial Laboratory
Volume64
Issue number4
Publication statusPublished - Apr 1998

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Osmium
Voltammetry
Minerals
Raw materials
Kinetics
Electrooxidation
Hydrogen peroxide
Hydrogen Peroxide
Electrolytes
Electrodes
Acids

ASJC Scopus subject areas

  • General
  • Chemical Engineering(all)

Cite this

Determination of osmium in mineral raw materials by the method of kinetic inversion voltammetry. / Kolpakova, N. A.; Kaminskaya, O. V.; Yagovkina, E. V.

In: Industrial Laboratory, Vol. 64, No. 4, 04.1998, p. 225-228.

Research output: Contribution to journalArticle

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