Reference electrode with ion barrier for electrochemical measuring systems
US5470453A · kind A · utility
16Cited by
6References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 28, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Jun 28, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reference electrode (2) which features an ion barrier (20) based on the redox principle and which is fashioned as an independent unit or as part of a combination electrode, for instance a single-rod measuring chain. Metal ions to be blocked and contained in the reference electrolyte (24) and the material forming the ion barrier (20) together form a redox system. The ion barrier (20) is preferably a reduction agent which reduces the metal ions to the respective metal, and its properties are such that it will not cause contamination of the diaphragm (6) in oxidized state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.