Investigations with respect to the electrochemical properties of carbon paste electrode fabricated using polybutadiene binder

폴리부타디엔 결합재를 이용하여 만든 탄소반죽전극의 전기화학적 특성에 관한 연구

  • 윤길중 (청주대학교 이공대학 응용과학부)
  • Received : 2006.10.18
  • Accepted : 2007.01.22
  • Published : 2007.02.28

Abstract

For the practical use as a biosensor, a rubber electrode bound by polybutadiene was newly devised for the determination of hydrogen peroxide. Then its electrochemical behaviors were investigated. The signal could be obtained at low electrode potential between 0.0 ~ -0.5 V (vs. Ag/AgCl) with a detection limit of $1.4{\times}10^{-4}M$ and its potential dependence was linear in the experimental range. Especially its Lineweaver-Burk plot showed a very good linearity giving the evidence of a good enzyme immobilization on the surface of the electrode. And mechanical stability of the electrode resulted from using rubber binder presented a new possibility for the practical use of biosensor.

Keywords

polybutadiene rubber;biosensor;enzyme electrode;hydrogen peroxide;peroxidase

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