Large area ion concentration measuring electrode and method of m

Details Large area ion concentration measuring electrode and method of m Large area ion concentration measuring electrode and method of m

1999-03-04

2000-12-19

Warden, Sr., Robert J.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204416, 204420, 156281, 156296, G01N 2726, G01N 27416

Patent

active

061623377

ABSTRACT:
An ion concentration measuring electrode unit includes a body member having a plurality of capillary tubes extending through the body member to provide a plurality of passageways for a sample fluid to be tested. The gaps between the hollow tubes are sealed to maintain an internal solution complimentary to the ion to be measured. An internal electrode is immersed within the internal solution whereby a large internal surface area is provided to enable a reduced impedance in measurement of a sample fluid. An ion concentration meter assembly is thereby provided when combined with a sample flow conduit directing fluid through the body member with a liquid junction connected to the conduit and to a reference electrode unit whereby outputs of the internal electrode and a reference electrode can be used to measure an ion concentration.

REFERENCES:
patent: 4519890 (1985-05-01), Uematsu et al.
patent: 4556473 (1985-12-01), Kohno et al.
patent: 4935117 (1990-06-01), Uematsu et al.
patent: 5639368 (1985-05-01), Davis et al.

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