Potentiometric sensors for analytic determination

  • US 6,251,260 B1
  • Filed: 08/24/1998
  • Issued: 06/26/2001
  • Est. Priority Date: 08/24/1998
  • Status: Expired due to Term
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First Claim
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1. A method for determining a concentration of an analyte, comprising:

  • contacting a working electrode with the analyte;

    applying a first potential at the working electrode to electroreduce or electrooxidize a plurality of redox centers disposed in a conductive film on the working electrode;

    removing the first potential;

    electrooxidizing or electroreducing the redox centers using the analyte as reductant or oxidant;

    measuring a second potential at the working electrode after removing the first potential; and

    correlating the second potential approximately linearly with the concentration of the analyte.

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  • 8 Assignments