Method of making capillary bridge in apparatus for determining ionic activity
US4336091A · kind A · utility
9Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1980 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | Sep 22, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1067
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device is disclosed for determining ion activity in liquid solutions by the use of electrodes over which a cover sheet with an internal capillary bridge promotes ionic migration between the electrodes. The cover sheet is formed of a porous material ribbon encapsulated in a nonporous web. Preferably, the cover sheet is punched at each electrode to provide fluid access holes for receiving drops of liquid solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.