Accession Number : ADB163345

Title :   Phase Separated Enzyme Inhibitor Electrode for Mercury Compounds.

Descriptive Note : Final rept. 15 Jul 91-15 Jan 92,

Corporate Author : ENZYME TECHNOLOGY RESEARCH GROUP INC DURHAM NC

Personal Author(s) : Zhao, Junguo

Report Date : 15 JAN 1992

Pagination or Media Count : 8

Abstract : Mercury is a highly toxic material that occurs in both organic and inorganic forms. Because of its widespread industrial use the whole population is exposed to mercury compounds everyday. There is a need for a fast, easy to use, in expensive, sensitive method for the detection of mercury to reduce the risk of chronic exposure. We have evaluated a new technique for the selective detection of low levels of organic mercury. We developed a portable device, based on enzyme inhibition by mercury and phase separation of organic and inorganic mercury, for the selective determination of mercury, either in its organic or inorganic form, or in total. The result is a sensor that demonstrates the feasibility of selectively detecting trace amounts of toxic mercury compounds (especially the Most toxic one, methylmercury) with easy to use, disposable enzyme electrodes. Practical phase separated enzyme inhibitor electrodes will have great commercial potential by providing simple inexpensive monitoring of the environment for trace amounts of toxic metals. Enzyme, Phase-Separated, Electrode heavy-metal, Inhibitor, Mercury, Toxic, Methylmercury, RAD III, SBIR.

Descriptors :   *ELECTRODES, DETECTION, DETERMINATION, ENVIRONMENTS, ENZYME INHIBITORS, ENZYMES, HEAVY METALS, INHIBITION, INHIBITORS, MATERIALS, MERCURY, MERCURY COMPOUNDS, METALS, MONITORING, PHASE, POPULATION, RISK, SEPARATION.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE