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http://dx.doi.org/10.14478/ace.2011.22.1.114

Electrochemical Characterization of Animal Tissue-Immobilized Carbon Paste Biosensor Bound with Chloroprene Rubber  

Rhyu, Keun-Bae (Department of Applied Chemistry, Cheongju University)
Publication Information
Applied Chemistry for Engineering / v.22, no.1, 2011 , pp. 114-118 More about this Journal
Abstract
Even though the carbon paste electrode bound with mineral oil is useful for research about the characteristics of enzymes, it remains far from practical uses because the lack of mechanical hardness limits its practical use. When the rubber liquefied in toluene was used as a binder of carbon powder in lab, it is confirmed that the mechanical robustness of the electrode is guaranteed. In order to confirm whether it shows quantitative electrochemical behaviors or not, its kinetic parameters, e.g. the symmetry factor (${\alpha}=0.28$), the exchange current density ($i_0=4.06{\mu}A/cm^2$), the capacity of the double layer ($C_d=2.11{\times}10^{-3}F$), the Michaelis constant ($K_M=2.45{\times}10^{-3}M$), and the time constant (${\tau}_B=0.077sec$) were investigated. Our experimental observations prove that the chloroprene rubber is a promising binder for the practical use of a carbon paste electrode.
Keywords
carbon paste electrode; hydrogen peroxide; peroxidase; chloroprene rubber;
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