Ion sensor

Details Ion sensor Ion sensor

1993-01-28

1994-05-03

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204416, 204418, 204433, 204435, G01N 2726

Patent

active

053084683

ABSTRACT:
Ion sensor having an ion-selective electrode and a reference electrode, both being unified, without internal liquid solution. The ion-selective electrode part has a solid solution of halogenide of conducting ions of solid electrolyte and halogenide of metal for an internal electrode, e.g., NaCl-AgCl solid solution. The reference electrode part has a solid solution of halogenide of the group Ia or IIa, e.g., Na, K, and a halogenide of metal for an internal electrode, e.g., NaCl-AgCl solid solution. The electrode parts are supported by an insulating substrate. A solid electrolyte such as NASICON or ionophore such as valinomycin is used as an ion-sensitive membrane.

REFERENCES:
patent: 4214968 (1980-07-01), Battaglia et al.
patent: 4358516 (1982-11-01), Lange
patent: 4454007 (1984-06-01), Pace
patent: 4508613 (1985-04-01), Busta et al.
patent: 4686012 (1987-08-01), Engell et al.
Solid Electrolytes, Hagenmuller and Gool, Academic Press 1978, pp. 406-407.

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