×

Passive sample detection to initiate timing of an assay

  • US 6,872,299 B2
  • Filed: 12/10/2001
  • Issued: 03/29/2005
  • Est. Priority Date: 12/10/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for measuring the concentration of an analyte of a sample that is applied to an electrochemical cell, comprising the steps of:

  • applying said sample to said electrochemical cell in the absence of an external electrical signal applied to said electrochemical cell;

    monitoring the potential difference across the electrochemical cell;

    determining a sample detection time by noting when said potential difference increases above a predetermined threshold voltage;

    applying a predetermined test voltage to said electrochemical cell;

    measuring an electrical response to said applied predetermined test voltage at a predetermined time after applying said predetermined test voltage; and

    calculating said analyte concentration using said measured electrical response.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×