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Method for passively determining the application of a sample fluid on an analyte strip

  • US 6,150,124 A
  • Filed: 05/20/1999
  • Issued: 11/21/2000
  • Est. Priority Date: 05/20/1999
  • Status: Expired due to Fees
First Claim
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1. A method for determining a start of reaction timing for measurement of a reaction between a sample fluid and a reagent, comprising the steps of:

  • a) measuring a transmission of light through the reagent at intervals prior to application of the sample fluid to the reagent;

    b) applying the sample fluid to the reagent;

    c) measuring the transmission of light through the reagent/sample fluid combination at intervals after performing step (b);

    d) determining a location of a step increase in the measurement data taken at steps (a) and (c);

    e) beginning a predetermined time period at a time corresponding to the step increase; and

    f) measuring the transmission of light through the reagent sample fluid combination after expiration of the predetermined time period.

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