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Methods of using an electrochemical biosensor

  • US 8,388,827 B2
  • Filed: 02/07/2012
  • Issued: 03/05/2013
  • Est. Priority Date: 02/06/2004
  • Status: Active Grant
First Claim
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1. A method for evaluating a fluid test sample using an electrochemical sensor, the test sensor including a working electrode coupled to a first lead, and counter electrode coupled to a second lead, the counter electrode including a high-resistance portion and a low-resistance portion, the high resistance portion including a resistor, the test sensor including a reagent disposed on the working electrode that is adapted to react with glucose in a blood sample for producing an electrochemical reaction indicative of the concentration of the glucose in the blood sample, the method comprising:

  • collecting a blood sample;

    applying a voltage profile across the first and second leads;

    measuring the current profile at the first and second leads in response to the applied voltage profile; and

    determining a decay factor based on the measured current profile.

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