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Application of iron-tetrasulfonatophthalocyanine as a new mimetic peroxidase in the determination of hydrogen peroxide with p-hydroxyphenylpropionic acid as a substrate

  • Qiu Ying Chen
  • , Dong Hui Li
  • , Qing Zhi Zhu
  • , Hong Zheng
  • , Jin Gou Xu
  • Xiamen University

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

A new promising mimetic peroxidase, iron-tetrasulfonatophthalocyanine (FeTSPC), has been synthesized and applied to the determination of hydrogen peroxide based on its catalytic effect on the oxidation of p-hydroxyphenylpropionic acid (p-HPPA). Under optimum conditions, the calibration graph has a linear range of 0.0 x 10-6 - 3.6 x 10-6 mol/l hydrogen peroxide with a detection limit of 1.3 x 10-8 mol/l in a 30 min reaction period. Application of the system to the determination of glucose shows a linear range 0.0 x 10-6 - 6.0 x 10-6 mol/l and a detection limit of 3.1 x 10-8 mol/l. The feasibility of FeTSPC as a new mimetic peroxidase in practical clinical analysis has been proven in the determination of glucose in human serum.

Original languageEnglish
Pages (from-to)175-182
Number of pages8
JournalAnalytica Chimica Acta
Volume381
Issue number2-3
DOIs
StatePublished - Feb 16 1999

Keywords

  • Fluorimetry
  • Hydrogen peroxide determination
  • Iron-tetrasulfonatophthalocyanine
  • Mimetic enzyme

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