Biosensor calibration method

摘要

A biosensor calibration method configured to measure a concentration of a specific substance contained in sample liquid to be measured, including: a first step configured to acquire a first output value that is output by the biosensor when first calibration liquid is brought into contact with the biosensor; a second step configured to acquire a second output value that is output by the biosensor when second calibration liquid having a different concentration from that of the first calibration liquid is continuously brought into contact with the biosensor after the first step and determine time for replacement of the biosensor on the basis of the first output value and the second output value.

主权项

1. A biosensor calibration method, wherein a biosensor is configured to measure a concentration of a specific substance contained in sample liquid to be measured, the method comprising:
(a) measuring a base output value in a state in which the biosensor is covered with a cap and the biosensor is in contact with a storage liquid that is filled in an interior of the cap; (b) acquiring a first output value that is output by the biosensor when first calibration liquid is brought into contact with the biosensor in a state in which the cap is removed from the biosensor, the first output value being obtained by subtracting the base output value from an actual measured value output by the biosensor; (c) acquiring a second output value that is output by the biosensor when second calibration liquid having a different concentration of the specific substance from that of the first calibration liquid is brought into contact with the biosensor after the step (b) without performing a cleaning operation, the second output value being obtained by subtracting the base output value from an actual measured value output by the biosensor; and (d) determining whether or not the time for replacement of the biosensor has been reached on the basis of whether or not the first output value and the second output value satisfy a predetermined relationship based on a concentration ratio of the first calibration liquid and the second calibration liquid.