Capillary-reference electrode
First Claim
1. A capillary reference electrode, comprising a capillary body with a capillary bore, a chamber connected by an electrolytic bridge with a test sample capable of being introduced into said capillary bore, and a reference electrode extending into said chamber, the chamber being provided with an inlet and an outlet for charging said chamber with electrolyte, said inlet in the installed state of said capillary body, is arranged in a geometrically low position and said outlet at a geometrically high position on said chamber and for said electrolytic bridge is provided a communicating passage between said chamber and said capillary bore which communicating passage adjacent to said capillary bore has a substantially conical end with a communication bore to said capillary bore.
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Accused Products
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.
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Citations
11 Claims
- 1. A capillary reference electrode, comprising a capillary body with a capillary bore, a chamber connected by an electrolytic bridge with a test sample capable of being introduced into said capillary bore, and a reference electrode extending into said chamber, the chamber being provided with an inlet and an outlet for charging said chamber with electrolyte, said inlet in the installed state of said capillary body, is arranged in a geometrically low position and said outlet at a geometrically high position on said chamber and for said electrolytic bridge is provided a communicating passage between said chamber and said capillary bore which communicating passage adjacent to said capillary bore has a substantially conical end with a communication bore to said capillary bore.
Specification