Polarographic chemical sensor with external reference electrode
US5078854A · kind A · utility
258Cited by
15References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1990 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/817
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electroanalytical electrode assembly includes an electrically conductive working electrode having a body of electrolyte material thereupon and separated from the analytical environment by a hydrophobic membrane. The membrane has an electrical conductivity greater than the electrical conductivity of the remainder of the measuring circuit and is selectably permeable for a preselected and ionic species, so as to provide a stable membrane potential. Use of an assembly of this type allows for placement of a reference electrode external of the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.