Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1993-09-29
1995-05-09
Tung, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204418, 204435, G01N 27333
Patent
active
054136857
ABSTRACT:
An ion-selective electrode comprises an ion-sensing membrane, an internal electrode adhered to the ion-sensing membrane, and a lead connected to said internal electrode. The internal electrode used comprises a plurality of metallic wires arranged into a grating or a mesh. The wires comprises a metal core and a surface layer of a salt of the metal. The metal of the core is silver and the salt of the metal is a silver halide selected from the group consisting of silver bromide, silver chloride and silver iodide. At least a part of the internal electrode is buried inside the ion-sensing membrane. Various components, the ion-sensing membrane, the internal electrode, the lead, an external terminal, are disposed in a flow-through cell having a flow path formed therein, through which path a sample solution is passed, to constitute the ion-selective electrode. In the flow-through cell is disposed a means of maintaining the humidity to feed water vapor therefrom to the ion-sensing membrane. This structure, even when the ion-sensing membrane has a complicated configuration such as concave or convex surface, enables the establishment of good adhering conditions between the internal electrode and the ion-sensing membrane while retaining the complicated configuration of the ion-sensing membrane without reducing the effective contact areas of the ion-sensing membrane and the internal electrode.
REFERENCES:
patent: 2934484 (1960-04-01), Anderson
patent: 3574078 (1971-04-01), Hynes et al.
patent: 3625851 (1971-12-01), Geld
patent: 3700577 (1972-10-01), Grauer
patent: 3856649 (1974-12-01), Genshaw et al.
patent: 4214968 (1980-07-01), Battaglia et al.
patent: 4227984 (1980-10-01), Dempsey et al.
patent: 4776944 (1988-10-01), Janata et al.
patent: 5011588 (1991-04-01), Rao et al.
patent: 5074988 (1991-12-01), Nyberg et al.
patent: 5288388 (1994-02-01), Fombon
Miyahara Yuji
Ozawa Satoshi
Taki Mamoru
Watanabe Yoshio
Yamashita Koutarou
Hitachi , Ltd.
Tung T.
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