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Journal of Applied Electrochemistry

, Volume 38, Issue 12, pp 1779–1783 | Cite as

Determination of catechol based on an oscillating chemical reaction involving a macrocyclic complex as catalyst

  • Panpan Chen
  • Gang Hu
  • Wei Wang
  • Jimei Song
  • Lingguang Qiu
  • Hongliang Wang
  • Lulu Chen
  • Jinfeng Zhang
  • Lin Hu
Short Communication

Abstract

A novel methodological approach for the determination of catechol based on a Belousov-Zhabotinskii type oscillating system is presented. Such an oscillating reaction involves the oxidation of malic acid in an acidic bromate medium in the presence of a catalyst—macrocyclic complex [CuL] (ClO4)2. The unsaturated ligand L in the complex [CuL] (ClO4)2 is 5,7,7,12,14,14-hexemethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene. By perturbation of catechol on the oscillating chemical reaction, the increase in the oscillation amplitude is linearly proportional to the logarithm of the concentration of catechol in the range 2.1 × 10−6–2.1 × 10−4 M, with a correlation coefficient of 0.9976. The R.S.D obtained for 7.88 × 10−5 M catechol is 3.8% (n = 5). Cyclic voltammetry was applied to explore the mechanism of catechol perturbation on the oscillating chemical reaction.

Keywords

Catechol Belousov-Zhabotinskii reaction Oscillating chemical system Macrocyclic complex Catalyst 

Notes

Acknowledgements

The authors gratefully acknowledge funding of this work by the National Science Foundation of China, the Foundation of Education Committee of Anhui Province (KJ2008A118), and Rencai Foundation of Anhui University (02203105), China.

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Panpan Chen
    • 1
  • Gang Hu
    • 1
  • Wei Wang
    • 1
  • Jimei Song
    • 1
  • Lingguang Qiu
    • 1
  • Hongliang Wang
    • 1
  • Lulu Chen
    • 1
  • Jinfeng Zhang
    • 1
  • Lin Hu
    • 2
  1. 1.Department of ChemistryAnhui UniversityHefeiPeople’s Republic of China
  2. 2.Institute of Applied ChemistryEast China Jiaotong UniversityNanchangPeople’s Republic of China

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