Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (12): 1598.

• Articles • Previous Articles     Next Articles

The Determination of Oxalate in Urine by the Tissue-Based Membrane Sensor of Banana Skin Acetone Pulp as Biocatalyst

Fang Yao1, Cai Rong-hui1, Deng Jia-qi1, Wang Ping2, You Da-heng2   

  1. 1. Department of Chemistry, Fudan University, Shanghai, 200433;
    2. Analysis and Research Centre, East China University of Chemical Technology, Shanghai, 200237
  • Received:1990-10-10 Online:1991-12-24 Published:1991-12-24

Abstract: Coupling of acetone-precipitated pulp from the banana skin to an oxygen electrode, an amperometric tissue-based sensor for oxalate is prepared. The linear response range of this sensor is 0. 01 -0. 5 mmol/Lwith a detection limit of 2.5 ×10-6mol/L. It has a response time less than two minutes and an useful lifetime of thirty days.

Key words: Biosensor, Oxalic acid, Oxalate oxidase, Urine

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