METHOD FOR MEASURING CONCENTRATION OF ANALYTE
1 Assignment
0 Petitions
Accused Products
Abstract
A biosensor system can comprise a sensor chip and a measurement device. The sensor chip comprises a capillary and electrodes disposed within the capillary. The height of the capillary is set to be less than the maximum value of the sum of the diffusion distance of an electron-transfer mediator and the diffusion distance of an analyte at the upper limit of the measurement guaranteed temperature of the biosensor system. The measurement device applies an open circuit voltage, a voltage that is lower than during concentration measurement, or the like to the electrodes of the sensor chip.
0 Citations
16 Claims
-
1-10. -10. (canceled)
-
11. A method for measuring the concentration of an analyte in a liquid sample using a redox enzyme or an electron-transfer mediator, which is executed by a biosensor system having a sensor chip comprising a capillary into which a liquid sample is introduced, whose height is less than the maximum value of the sum of the diffusion distance of the electron-transfer mediator and the diffusion distance of the analyte at the upper limit of the measurement guaranteed temperature of the biosensor system, a plurality of electrodes disposed within the capillary, and a reagent layer that is disposed within the capillary and includes the electron-transfer mediator,
said measurement method comprising: -
a first voltage application step of applying a first voltage to the electrodes; a current detection step of detecting the value of current flowing through the liquid sample during the application of the first voltage; a concentration measurement step of measuring the concentration of the analyte on the basis of the current value; and a second voltage application step of applying a second voltage to the electrodes prior to the detection of the current value, so that the temperature of the liquid sample will have less effect on the measurement results of the concentration measurement section. - View Dependent Claims (12, 13, 14, 15, 16)
-
Specification