Small glass electrode

Details Small glass electrode Small glass electrode

1991-12-06

1995-05-23

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

65102, 20415321, 204433, G01N 2736

Patent

active

054178371

ABSTRACT:
A small glass electrode and process for preparation thereof are disclosed. This small glass electrode is characterized in that said glass electrode, which has a bonded structure comprises a reference electrode composed of silver/silver chloride, a glass substrate having a pad embedded therein, said pad being composed of gold or platinum and circuit-connected to the reference electrode, and a silicon substrate having a (100) plane selectively etched by the anisotropic etching technique and comprising a groove for injecting an electrolyte composed of an aqueous solution containing chlorine such as KCl, or HCl, at least one hole for holding the electrolyte and a glass film formed in a portion corresponding to the reference electrode. By this structure, the small glass electrode can be easily manufactured at a low cost.

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patent: 5183550 (1993-02-01), Mattiessen
Analytical Chemistry, vol. 53, No. 3, Mar. 1981, pp. 552-554, Savinell et al., "Miniature glass pH electrode with nonaqueous internal solution", the whole document.

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