Method of reducing the effect of direct and mediated interference current in an electrochemical test strip
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United States of America Patent
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Issued Date -
Jun 30, 2005
app pub date -
Oct 29, 2004
filing date -
Oct 31, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is directed to a method of reducing interferences in an electrochemical sensor wherein the method includes the step of measuring a first current at a first working electrode, the first working electrode being covered by an active reagent layer, the step of measuring a second current at a second working electrode, the second working electrode being covered by an inactive reagent layer and the step of calculating a corrected current value representative of a glucose concentration using a ratio of an active area of the first working electrode to an inactive area of the second working electrode. The present invention is further directed to a method of reducing interferences in an electrochemical sensor wherein the method includes the step of measuring a first current at a first working electrode, the first working electrode being covered by an active reagent layer, the step of measuring a second current at a second working electrode, wherein the active reagent layer is disposed on an active region of the second working electrode and an inactive region of the second working electrode is covered by an inactive reagent layer and the step of calculating a corrected current value representative of a glucose concentration using a ratio of an active region on the first and second working electrodes and an inactive region on the second working electrode.
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