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Stripping voltammetric detection of thorium on the oxine modified carbon paste electrode

  • Nasim Soltani
  • Hedayat Haddadi
  • Mehdi Asgari
  • Abolfazl Semnani
Article
  • 125 Downloads

Abstract

Thorium cannot be determined by direct polarography or conventional stripping voltammetry. Higher sensitivity has been achieved by square wave anodic stripping voltammetry of the thorium complex with oxine at a carbon paste electrode. In the pH at 1.0 the peak current of the complex was linearly dependent upon the concentration of Th(IV) within the range of 2.0 × 10−9–2.2 × 10−8 M, with the limit of detection 0.2 nM, the accumulation time, and the accumulation potential were 200 s and −0.6 V, respectively.

Keywords

Thorium Oxine complex Carbon paste electrode Stripping voltammetry 

Notes

Acknowledgments

The support of this work by research grants from the NSTRI and Shahrekord University Research Council is gratefully acknowledged.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • Nasim Soltani
    • 1
  • Hedayat Haddadi
    • 1
    • 3
  • Mehdi Asgari
    • 2
  • Abolfazl Semnani
    • 1
  1. 1.Department of Chemistry, Faculty of SciencesShahrekord UniversityShahrekordIran
  2. 2.NFCRS, NSTRITehranIran
  3. 3.Nanotechnology Research CenterShahrekord UniversityShahrekordIran

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