Determining an analyte concentration of a physiological fluid having an interferent

Systems and methods for determining a concentration of an analyte in a physiological fluid are presented. A test voltage is applied between a first electrode and the second electrode of a biosensor, in which the first electrode includes a reagent and the second electrode is uncoated with the reagent...

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Bibliographic Details
Main Author Mackintosh, Stephen
Format Patent
LanguageEnglish
Published 22.08.2019
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:Systems and methods for determining a concentration of an analyte in a physiological fluid are presented. A test voltage is applied between a first electrode and the second electrode of a biosensor, in which the first electrode includes a reagent and the second electrode is uncoated with the reagent. The reagent is selected for a reaction with the analyte, but not with the interferent. First and second current values are measured at the first and second electrodes during first and second time periods after application of the test voltage, respectively. First and second current parameters are determined by taking the sums of the current values and subtracting factors dependent on at least one of the current values. The analyte concentration is determined as a function of a ratio of the first current parameter and the second current parameter.
Bibliography:Application Number: AU20180215988