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Interferant eliminating biosensor

  • US 5,356,786 A
  • Filed: 12/02/1993
  • Issued: 10/18/1994
  • Est. Priority Date: 03/04/1991
  • Status: Expired due to Term
First Claim
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1. A biosensor comprising:

  • an electrode on which an analyte is electrooxidized at a given applied potential; and

    an interferant-eliminating layer substantially covering the electrode but electrically isolated therefrom at the given applied potential,said interferant-eliminating layer comprising a catalyst which is capable of catalizing substantial oxidation of a plurality of interferants but not substantial oxidation of the analyte,wherein the catalyst mediates the following reaction;

    ##STR4## where AH2 represents an interfering compound and A represents a non-interfering compound.

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