Sensor and concentration measurement method
First Claim
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1. A sensor for detecting or quantifying a target substance contained in a liquid sample, comprising:
- a phenanthrenequinone and a phenanthrenequinone derivative as a mediator;
an enzyme dehydrogenating or oxidizing the target substance; and
at least a pair of electrodes;
wherein the amount of the phenanthrenequinone and the phenanthrenequinone derivative contained in the sensor is 0.05 to 2500 nmol per unit of the enzyme.
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Abstract
A reagent layer of a sensor contains as a mediator a quinone compound having a hydrophilic functional group, phenanthrenequinone, and/or a phenanthrenequinone derivative. The quinone compound has a lower redox potential than a conventional mediator, so interfering substances have less effect on detection results with this sensor.
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Citations
2 Claims
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1. A sensor for detecting or quantifying a target substance contained in a liquid sample, comprising:
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a phenanthrenequinone and a phenanthrenequinone derivative as a mediator; an enzyme dehydrogenating or oxidizing the target substance; and at least a pair of electrodes; wherein the amount of the phenanthrenequinone and the phenanthrenequinone derivative contained in the sensor is 0.05 to 2500 nmol per unit of the enzyme. - View Dependent Claims (2)
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Specification