A Disposable, Screen-Printed Electrode for the Amperometric Determination of Azide Based on the Immobilization with Catalase or Tyrosinase

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  • CUI Yue
    Department of Chemical Engineering and Department of Chemistry, Hong Kong University of Science and Technology
  • BARFORD John P.
    Department of Chemical Engineering and Department of Chemistry, Hong Kong University of Science and Technology
  • RENNEBERG Reinhard
    Department of Chemical Engineering and Department of Chemistry, Hong Kong University of Science and Technology

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  • Disposable Screen Printed Electrode for the Amperometric Determination of Azide Based on the Immobilization with Catalase or Tyrosinase

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Abstract

A disposable, screen-printed electrode based on the immobilization of catalase or tyrosinase was developed to construct biosensors for the amperometric determination of azide. The determination principles for azide by these two methods are based on inhibiting the enzymatic consumption of an electrode-detectable substance (hydrogen peroxide or catechol) on an enzyme-immobilized electrode. Both of these methods show a sensitive detection range and a short measuring time.

Journal

  • Analytical Sciences

    Analytical Sciences 22 (10), 1279-1281, 2006

    The Japan Society for Analytical Chemistry

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