Double junction reference electrode

Details Double junction reference electrode Double junction reference electrode

1980-07-10

1981-08-04

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2730

Patent

active

042820812

ABSTRACT:
A highly stable, double-junction, modular reference electrode for assay of low-level halide concentrations, sulfides, perchlorates, silver, mercury, and other heavy metals, and including upper and lower axially in-line, readily accessible and conveniently fillable compartments for retaining electrically conductive compositions, an intercoupling removable plug constituting fluid-tight means bridging axially between the compartments and carrying a conduit providing a fluid permeable electrically and ionically conductive path between the compartments, an external cable lead projecting through a sealing cap closing the upper compartment for establishing electrical contact with a conductive medium contained in the upper compartment, a removable sealing plug at a lower open end of the lower compartment, and a conduit extending axially through said plug and providing a flow-restrictive fluid permeable path between the lower compartment and a test system external of the electrode.

REFERENCES:
patent: 3103480 (1963-09-01), Watanabe et al.
patent: 3455793 (1969-07-01), Watanabe et al.

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