Patent ID: 8859292

Claim:
A biological sample concentration measurement method of measuring a concentration of an analyte contained in a biological sample in a sensor chip including: an electrode unit formed by a working electrode and a counter electrode, the working and counter electrodes respectively including a reagent containing an electrolyte; and a capillary allowing the biological sample to be introduced therein, the biological sample concentration measurement method comprising: a taking-in step of taking in a predetermined amount of the biological sample from an entirety of the biological sample introduced into the capillary; a temperature measurement step of measuring a temperature of the biological sample by applying a first voltage to the electrode unit when the temperature of the biological sample is measured, the first voltage allowing the temperature measurement to be less affected by increase and reduction in an amount of the analyte contained in the biological sample; and a concentration measurement step of measuring the concentration of the analyte in the biological sample by applying a second voltage to the electrode unit, wherein the first voltage has a potential difference greater than the second voltage.