Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating
Patent
1980-02-19
1982-01-26
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
Vacuum arc discharge coating
128635, G01N 2736
Patent
active
043127347
ABSTRACT:
A dry glass electrode for use in potentiometric analyses of aqueous media. The electrode comprises a metal conductor constituted of platinum, gold, or tantalum, a layer comprising an oxide of the metal having a thickness of between about 50 Angstrom units and about 2 microns on an outer surface of the metal conductor, and an ion-selective glass membrane over and in electrical contact with the oxide layer. The ion-selective glass has a coefficient of thermal expansion differing by less than about 25% from the coefficient of thermal expansion of the metal.
A method for producing the electrode of the invention is also disclosed.
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Kaplan G. L.
The Curators of the University of Missouri
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