Electrochemical detection system and method of analysis
Patent 4404065 Issued on September 13, 1983. Estimated Expiration Date: 
September 13, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 13, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorAssigneeApplicationNo. 06/111917 filed on 01/14/1980US Classes:205/780.5, For nitrogen or nitrogen containing compound204/411, Three or more electrodes205/792.5, Using ion exchange resin210/198.2, Chromatography210/656, Chromatography422/70, Liquid chromatography436/161, INCLUDING CHROMATOGRAPHY73/61.58Detector detailExaminersPrimary: Kaplan, G. L.Attorney, Agent or FirmInternational ClassesG01N 33/68 (20060101)G01N 27/403 (20060101) G01N 27/49 (20060101) G01N 30/00 (20060101) G01N 30/64 (20060101) G01N 30/34 (20060101) G01N 30/02 (20060101) AbstractAn electrochemical detection apparatus is provided. The apparatus comprises a flow-cell having at least one active testing electrode, at least one reference electrode, and at least one counter electrode. Each electrode comprises a liquid impervious solid body having a bore extending therethrough with the electrode active surface located in the bore. The electrodes are arranged in a stack, electrically insulated from one another with their respective bores aligned so as to define a flow channel through which liquid to be detected can be passed. In a preferred embodiment of the invention at least one of the reference electrodes is actively driven to supply a stable reference potential against which other electrochemical responses can be measured. Various electrochemical responses are achieved by varying the construction, number and arrangement of electrodes in the stack, and the potentials applied to the electrodes. The detection apparatus has particular utility for use in monitoring chromatographic eluant.Other References
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