Multi-purpose voltametric analyzer

Details Multi-purpose voltametric analyzer Multi-purpose voltametric analyzer

1986-09-10

1988-08-30

Tolin, G. P.

Electricity: measuring and testing

Electrolyte properties

Using a ph determining device

324439, 204406, G01N 2746

Patent

active

047679948

ABSTRACT:
An instrument for measuring the concentration of a wide variety of important chemical and biochemical substances is provided which comprises an enzyme based voltametric sensor, and electronic circuitry for conditioning an output signal from the sensor. The instrument includes one or more aqueous oxidase enzymes mechanically coupled to a polarographic cell oxygen detector wherein the concentration of a substance is inferred from measurement of the depletion of oxygen resulting from an oxidation reaction catalyzed by the oxidase enzyme. The electronic circuitry includes current to voltage conversion, nulling an unneeded base current signal, and temperature compensation.

REFERENCES:
patent: 3539455 (1970-11-01), Clark, Jr. et al.
patent: 4073713 (1978-02-01), Newman
patent: 4207146 (1980-06-01), Kunte
patent: 4394222 (1983-07-01), Rohr
patent: 4460967 (1984-07-01), Krull et al.
patent: 4502937 (1985-03-01), Yagi
patent: 4556635 (1985-12-01), Hitzman et al.
patent: 4655880 (1987-04-01), Liu
Hopkins, "A multipurpose Enzyme Sensor Based on Alcohol Oxidase", American Brotechnology Laboratory, Sep./Oct. 1985.

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