Patent ID: 8192610

Claim:
A method for determination of an analyte in a sample comprising the steps of: (a) introducing the sample to an electrochemical test strip having working and counter electrodes; (b) applying a potential difference, V app , between the electrodes of the test strip and observing a current signal sufficient to provide an initial determination of analyte in the sample and for a period of time sufficient to determine a plateau current, I plateau , that reflects recycling or shuttling of mediator between the electrodes; (c) switching off the applied potential at time t switch and determining the magnitude, V drop , of a voltage drop arising from series electrode resistance, if present; (d) calculating a track resistance R track , and comparing the determined magnitude of R track against a predetermined range, and rejecting the test if the magnitude of R track falls outside of the range wherein the value of R track =V drop /I plateau and (e) if the magnitude is within the predetermined range, correcting the initial determination of analyte to compensate for track resistance and proceeding to display or communicate the result from the corrected determination of analyte.