Abstract
A novel carbon paste electrode(CPE) modified with MnO2 and glucose oxidase(GOx),is reported.Different factors,such as the effect of supporting electrolyte,pH of solutions,various paste glues,the amount of MnO2 and temperature,which may influence the determination of H2O2 and glucose were tested to optimize.Based on above,potentiometric determination of glucose was achieved in neutral solution and at 35 ℃,the electrode gave a response of 36.12～34.62 mV/pGlucose between 2.0×10-5mol·L-1 and 5.2×10-3 mol·L-1 with a detection limit of 3.3×10-6 mol·L-1.Moreover,this kind of the electrode had good stability and reproducibility.Most normal anion,cation,isotol,glycerin and amide will not interfere the determination of glucose.
Keywords
MnO2-GOx, carbon paste electrode, glucose, potentiometric response
Publication Date
2008-02-28
Online Available Date
2008-02-28
Revised Date
2008-02-28
Received Date
2008-02-28
Recommended Citation
Cai-juan WANG, Xiao-ya HU.
Potentiometric Response of Glucose on MnO_2-GO_x Carbon Paste Electrode[J]. Journal of Electrochemistry,
2008
,
14(1): 76-82.
DOI: 10.61558/2993-074X.1867
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol14/iss1/16
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