Heterogeneous membrane electrodes
US7767068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2004 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Aug 19, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0683
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to planar electrochemical sensors with membrane coatings used to perform chemical analyses. The object of this invention is to provide unit-use disposable sensors of very simple and inexpensive construction, preferably with only a single membrane coating on an electrode. The invented devices are potentiometric salt-bridge reference electrodes and dissolved gas sensors constructed with a heterogeneous membrane coating of a conductor. The heterogeneous membrane, which is an intimate admixture of a hydrophobic and a hydrophilic compartment, concurrently supports constrained transport of non-volatile species through its hydrophilic compartment and rapid gas and water vapor transport through its hydrophobic compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.