Voltage characteristic comparator for discriminating solutions

Details Voltage characteristic comparator for discriminating solutions Voltage characteristic comparator for discriminating solutions

1991-12-04

1994-02-22

Wieder, Kenneth A.

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324439, 324713, 204407, 422 8202, G01N 2706

Patent

active

052891321

ABSTRACT:
An apparatus and method for rapidly identifying the chemical compositions and concentrations of solutions and for discriminating among solutions of different chemical compositions and concentrations of the solution is monitored by applying across a predetermined volume of the solution a predetermined voltage for a predetermined time after which the application of voltage is terminated and the voltage time characteristic measured across the solution as the voltage decays is compared with an empirically obtained voltage versus time characteristic for a solution having a standardized composition and/or concentration.

REFERENCES:
patent: 3100985 (1963-08-01), Wells
patent: 3293155 (1966-12-01), Stone
patent: 3430129 (1969-02-01), Cardeiro
patent: 3450984 (1969-06-01), Holmes
patent: 4728943 (1988-03-01), Vermeiren
patent: 4853638 (1989-08-01), Endou et al.
patent: 5081420 (1992-01-01), Fullenwider
patent: 5124659 (1992-06-01), Frola et al.

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