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Photoresponsive redox detection and discrimination

  • US 4,704,353 A
  • Filed: 04/27/1984
  • Issued: 11/03/1987
  • Est. Priority Date: 04/27/1984
  • Status: Expired due to Fees
First Claim
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1. A photoresponsive device for making at different sites a plurality of determinations of a redox substance capable of modifying an electrical signal resulting from irradiation of a photoresponsive element, said device comprising:

  • a photoresponsive element having an irradiation receiving surface;

    irradiation means for irradiating at least two sites on said surface to provide distinguishable signals;

    a counterelectrode;

    means for polarizing said element with respect to said counterelectrode;

    first container means for retaining media in which said substance is to be determined in a photoresponsive modifying relationship to at least two sites;

    second container means for maintaining a first electrolyte in electrical communication with said photoresponsive element;

    third container means for maintaining a second electrolyte in electrical communication with said counterelectrode;

    means for providing electrical communication between electrolyte in said second and third container means without mixing of said first and second electrolytes; and

    means for measuring the electrical photoresponse during irradiation of a site.

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