Materials Science

, Volume 44, Issue 2, pp 248–253 | Cite as

Spectrophotometric determination of osmium (IV) ions in intermetallic compounds

  • O. S. Bonishko
  • T. Ya. Vrublevs’ka
  • O. Z. Zvir
  • O. P. Dobryans’ka
Article
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Abstract

We have developed, for the first time, a simple spectrophotometric method for the determination of osmium (IV) ions, based on the reaction of formation of a complex of this metal with Congo Red. We have established the optimal conditions of formation of this complex. The interaction of Os(IV) with Congo Red proceeds with complex formation for the ratio Me: R = 1: 1 at pH 3.5. The complex obtained is characterized by the maximum light absorption on λmax = 340 nm. Our method enables one to determine from 0.09 to 6.7 mg / liter of osmium. We have also investigated the influence of foreign ions on the spectrophotometric determination of Os(IV). Our method was verified in the course of analysis of synthetic solutions and alloys.

Keywords

Intermetallic Compound Osmium Spectrophotometric Determination Ionic Force Aliquot Part 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • O. S. Bonishko
    • 1
  • T. Ya. Vrublevs’ka
    • 1
  • O. Z. Zvir
    • 1
  • O. P. Dobryans’ka
    • 1
  1. 1.Franko Lviv National UniversityLvivUkraine

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