Patent ID: 8163162

Claim:
A method for reducing the effect of interferent in a test for analyte concentration, comprising: (a) introducing a physiological sample into an electrochemical cell, the electrochemical cell comprising: (i) first and second electrodes in a spaced apart relationship; and (ii) a first reagent; (b) applying a first test potential between said first and second electrodes, the first test potential having a first polarity and measuring cell current to obtain a first peak current value; (c) applying a second test potential between said first and second electrodes, the second test potential having a second polarity, and measuring cell current to obtain a second peak current value; (d) calculating an interference correction factor based on the first and second peak current values, wherein the interference correction factor can be used in a glucose concentration calculation to reduce the influence of chemical interferent compounds that will generate an interferent current by an oxidation or reduction reaction.