Electrochemical sensors for testing water
AssigneeArch Chemicals, Inc.
InventorsTouraj Rowhani, Steven Sungil Jang
Life of this patent
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Abstract
An electrochemical sensor for the detection and analysis of an analyte in a solution is disclosed. The electrochemical sensor has an electrically non-conductive support; a plurality of electrodes on the support, each electrode formed from an electrode material and having a first surface and an opposite second surface, said first surface facing towards the support and the second surface facing away from the support. The plurality of electrodes includes a reference electrode, a counter electrode, and a working electrode. The working electrode has a reagent composition containing a reagent for detecting an analyte applied directly to the second surface of the working electrode or dispersed throughout the electrode material of the working electrode.
Claims6
A electrochemical sensor for the detection and analysis of cyanuric acid in water, the electrochemical sensor comprising:
- (i) an electrically non-conductive support;
- (ii) a plurality of electrodes on the support, each electrode comprising an electrode material and having a first surface and an opposite second surface, the first surface facing towards the support and the second surface facing away from the support, the plurality of electrodes comprising
- a. a reference electrode,
- b. a counter electrode, and
- c. a working electrode;
- and
- (iii) a reagent composition containing a reagent for detecting cyanuric acid applied directly to the second surface of the working electrode, such that the reagent composition essentially completely covers the second surface of the working electrode or dispersed throughout the electrode material of the working electrode;
- wherein the reagent composition comprises a transition metal salt as the reagent and a polymeric binding component for the reagent, and wherein the transition metal of the transition metal salt is copper;
- and
- wherein the polymeric binding component comprises sodium alginate, polyethylene glycol, polyvinyl alcohol, or polyvinylpyrrolidone.
Dependencies are inferred from the claim text.