Capillary-reference electrode

Details Capillary-reference electrode Capillary-reference electrode

1981-09-09

1982-12-28

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204195F, 128635, G01N 2730

Patent

active

043660401

ABSTRACT:
In a capillary reference electrode with a capillary body which comprises a measuring chamber connected through an electrolytic bridge to a test sample which is adapted to be introduced into a capillary bore, the inlet orifice for the electrolyte is arranged at a point of the measuring chamber which is in a low position when the element is installed and the outlet orifice is arranged at a high position of the measuring chamber. The electrolytic bridge is formed through a communicating passage which has a substantially conical narrow end adjacent to the capillary bore with a very fine communication bore leading to the capillary bore. The resulting economy in electrolyte-consumption and absence of sensitivity in respect of potentially occuring air bubbles are further improved by providing the said communication bore with a substantially annular cross section.

REFERENCES:
Osswald, et al., "Flow-Through System of High Stability for Measurement of Ion Activities in Clinical Chem.", Chimia, vol. 31, 2/1977.

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