Combination electrode for ion concentration measurement
US8888977B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 17, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Feb 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4035
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A combination electrode for ion concentration measurement is provided including a glass electrode and a reference electrode whose internal electrode is made of silver-silver chloride, wherein a sealing means is provided configured to seal an upper surface of a reference electrode chamber formed in an outer tube which houses an internal electrode and an internal solution of the reference electrode, and around a glass support tube penetrating the outer tube along a substantially center axis thereof an annular silver member which the glass support tube penetrates along a center axis thereof, annular sealing elastic members for liquid-tightly sealing a space between the silver member and the glass support tube, and a space between the silver member and the outer tube, respectively, and the reference electrode internal electrode is connected to a terminal for a reference electrode through the silver member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.