Anion sensing electrode
US4349426A · kind A · utility
9Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1980 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Oct 24, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/3335
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensing membrane is fixed to one end of a tube comprising polyvinyl chloride. An aqueous sodium chloride solution is contained in the tube, and is in contact with an internal electrode wire. The sensing membrane comprises a support substance of polyvinyl chloride, a sensing substance of quaternary ammonium salt having an alkyl chain having 8 to 16 carbon atoms, and a plasticizer of normal decyl alcohol. Anions in a body fluid sample can be measured with a small measurement error by an electrode provided with the sensing membrane of that composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.