Method for determining the electrochemical characteristic of a test strip

摘要

This invention relates to a non-destructive means to determine electrochemical characteristics in biosensor test strips, including first applying a cyclic oxidative and reductive electric potential onto the inspection pads connecting to the reference electrode and working electrode, on which lies a drop of enzyme reagent solution, to homogenize the electrochemical characteristics of the biosensor test strips, and then applying an inspection electric potential within a short period of time over the inspection pads connecting to the reference electrode and working electrode to measure its electrical resistance to identify any abnormal biosensor test strips if present. Afterwards, embodiments of the present invention applies a reverse electric potential, having the same time interval as the inspection electric potential, onto the inspection pads connecting to the reference electrode and working electrode to prevent degradation on mediators such as potassium ferricyanide.

主权项

1. A method for determining an electrochemical characteristic associated with a test strip, comprising:
applying a cyclic electric potential to the test strip to stabilize the electrochemical characteristic of an enzyme reagent on the test strip; conducting a quality assurance test with an inspection electric potential on the test strip; and subjecting the test strip to a reverse electric potential adapted to substantially restore the test strip back to an original condition before the inspection electric potential is applied.