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Electrochemical Sensor and Methods for Making and Using Same

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A mercury-free, electrochemical sensor is described that includes a self-assembled monolayer on a mesoporous support (SAMMS) composite and a fluoropolymer component that is deposited on a measurement surface. The SAMMS component provides outstanding metal preconcentration. The fluoropolymer component acts as an antifouling binder. The sensor can detect various metals at a low detection level in the presence of fouling agents and without sample pretreatment. The sensor is also able to detect mixtures of metals simultaneously with excellent single and inter-electrode reproducibility. Service lifetimes are excellent.
Yantasee, Wassana (Richland, WA), Fryxell, Glen E. (Kennewick, WA), Addleman, Raymond S. (Benton City, WA), Lin, Yuehe (Richland, WA), Timchalk, Charles (Kennewick, WA)
12/ 427,431
April 21, 2009
[0002] This invention was made with Government support under Contract DE-AC0676RLO-1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.