Measuring device using biosensor and biosenor used for it, and dedicated standard liquid
First Claim
1. A measuring apparatus for use with a biosensor having a reaction layer which reacts with a substance to be measured in a sample solution, on a working electrode, a counter electrode, and a third electrode which are provided on an insulating substrate, so as to bridge the respective electrodes, said measuring apparatus comprising:
- a measuring unit operable to measure contents of the substance to be measured from a current value which is produced by a reaction between the substance to be measured and the reaction layer, which reaction is obtained between the working electrode and the counter electrode, and to judge the type of the sample solution on the basis of an oxidation current value obtained between the third electrode and the counter electrode or between the third electrode and the working electrode.
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Accused Products
Abstract
A reaction layer 12 which reacts with a substance to be measured in a sample solution is provided on a working electrode 1, a counter electrode 2, and a third electrode 3 which are provided on an insulating substrate 7 so as to bridge the respective electrodes, the content of the substance to be measured is measured from a current value which reaction is obtained between the working electrode 1 and the counter electrode 2, and the types of sample solution is judged by a difference between oxidation current values or between oxidation current waveforms, which are obtained between the third electrode 3 and the counter electrode 2 or between the third electrode 3 and the working electrode 1, thereby automatically judging the types of sample solution.
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Citations
11 Claims
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1. A measuring apparatus for use with a biosensor having a reaction layer which reacts with a substance to be measured in a sample solution, on a working electrode, a counter electrode, and a third electrode which are provided on an insulating substrate, so as to bridge the respective electrodes, said measuring apparatus comprising:
a measuring unit operable to measure contents of the substance to be measured from a current value which is produced by a reaction between the substance to be measured and the reaction layer, which reaction is obtained between the working electrode and the counter electrode, and to judge the type of the sample solution on the basis of an oxidation current value obtained between the third electrode and the counter electrode or between the third electrode and the working electrode. - View Dependent Claims (2, 3, 4)
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5. A measuring method using a biosensor having a reaction layer which reacts with a substance to be measured in a sample solution, on a working electrode, a counter electrode, and a third electrode which are provided on an insulating substrate, so as to bridge the respective electrodes, said method comprising:
measuring contents of the substance to be measured from a current value which is produced by a reaction between the substance to be measured and the reaction layer, which reaction is obtained between the working electrode and the counter electrode, and judging the type of the sample solution on the basis of an oxidation current value obtained between the third electrode and the counter electrode or between the third electrode and the working electrode. - View Dependent Claims (6, 7, 8, 9, 10, 11)
Specification