The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2012
Filed:
Mar. 30, 2007
Martin W. Kendig, Thousand Oaks, CA (US);
Chuan-hua Chen, Thousand Oaks, CA (US);
D. Morgan Tench, Camarillo, CA (US);
Jeffrey F. Denatale, Thousand Oaks, CA (US);
Frederick M. Discenzo, Brecksville, OH (US);
Martin W. Kendig, Thousand Oaks, CA (US);
Chuan-Hua Chen, Thousand Oaks, CA (US);
D. Morgan Tench, Camarillo, CA (US);
Jeffrey F. DeNatale, Thousand Oaks, CA (US);
Frederick M. Discenzo, Brecksville, OH (US);
Teledyne Scientific & Imaging, LLC, Thousand Oaks, CA (US);
Abstract
Electrochemical devices, methods, and systems for detecting and quantifying analytes are disclosed. A chemical detection reagent is locally generated in a test solution by electrochemical reaction of a precursor compound caused to migrate into the test solution from a precursor solution separated from the test solution by a cell separator. This approach provides precise metering of the reagent, via the charge passed, and avoids the need to store a reagent solution that may be chemically unstable. In one embodiment, the starch concentration in a colloidal solution can be measured via spectroscopic detection of a blue complex formed by the interaction of starch with iodine produced, on demand, by electrochemical oxidation of iodide ion. The approach may also be used to characterize certain types of analytes. The invention is amenable to automation and is particularly useful for on-line monitoring of production processes, including the inclusion of feed back loop mechanisms for process control.