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Sensor and concentration measurement method

  • US 9,212,380 B2
  • Filed: 08/30/2010
  • Issued: 12/15/2015
  • Est. Priority Date: 08/31/2009
  • Status: Active Grant
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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