Reference electrode
US4177126A · kind A · utility
20Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Jun 20, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reference electrode includes a holder member having therein a chamber. An inner electrode is positioned within the chamber, the inner electrode being connected to an electric lead extending through an upper end of the holder member. The holder member has a lower end which is closed by a liquid junction in the form of a hydrophilic polypropylene membrane coated with a surface active agent. The membrane has an integral flange which fits around the lower end of the holder member, and the membrane is readily selectively removable from the lower end of the holder member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.