Food and Fermentation Industries

Fabrication of Glucose Biosensor Based on Poly(thionine) Modified on the Screen-printed Electrode

  • Ding Jian-ying ,
  • Ni Wei-wei ,
  • Zhang Gen-hua ,
  • Zhan Yue-hua ,
  • Quan Ying ,
  • Han Jian-zhong
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Online published: 2011-10-25

Abstract

A novel electrochemical enzyme biosensor for determintion of glucose in food was developed by poly(Thionine) and glucose oxidase on the Screen-printed electrode by chitosan organic and inorganic sol-gel.The biosensor shows fast response,high sensitivity and good stability.In addition,the biosensor operated at low potential would be interference free from ascorbic acid,citric acid,sodium benzoate,sucrose,fructose.Under optimal experimental conditions,The linear response of the sensor to glucose was in the concentration range of 5.2×10-5-2.5×10-3 mol/L with a detection limit of 4.96×10-6 mol/L.

Cite this article

Ding Jian-ying , Ni Wei-wei , Zhang Gen-hua , Zhan Yue-hua , Quan Ying , Han Jian-zhong . Fabrication of Glucose Biosensor Based on Poly(thionine) Modified on the Screen-printed Electrode[J]. Food and Fermentation Industries, 2011 , 37(10) : 78 -82 . DOI: 10.13995/j.cnki.11-1802/ts.2011.10.010

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