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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Electrochemical properties of the mugwort-embedded biosensor for the determination of hydrogen peroxide

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2006, v.19 no.1, pp.58-64



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Abstract

A mugwort-tissue-based modified carbon paste electrode was constructed for the amperometric detection of hydrogen peroxide and its electrochemical properties are described. Especially the amperometric signal was very stable and bigger than any other enzyme electrode studied in this lab. The effect of tissue composition on the response was linear within the wide range of experiment and the linearity of Lineweaver-Burk plot showed that the sensing process of the biosensor is by enzymatic catalysis. And pH dependent current profile connoted that two isozymes are active in this system.

keywords
Hydrogen peroxide, Peroxidase, Biosensor, Isozyme, Optimum pH


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