Benzoquinone-mediated enzyme biosensor for amperometric determination of glucose

  • A S N Murthy
  • Jyotsna Sharma
Physical And Theoretical


An amperometric enzyme sensor for the analysis of glucose is described. The sensor uses benzoquinone as a mediator for electron transfer between immobilized glucose oxidase and a pyrolytic graphite electrode. A linear current response, proportional to glucose concentration in the range 1–50mM, is observed. The influence of oxygen,pH and operating potential on the sensor performance is examined.


Benzoquinone amperometric biosensors glucose oxidase enzyme sensor cyclic voltammetry 


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Copyright information

© the Indian Academy of Sciences 1997

Authors and Affiliations

  1. 1.Department of ChemistryIndian Institute of TechnologyNew DelhiIndia

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