Polarographic PPB oxygen gas sensor
US5393392A · kind A · utility
5Cited by
2References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1994 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Apr 25, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/404
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A polarographic electrochemical cell for the measurement of oxygen in ppb. The cathode in the system is a non-depleting carbon polytetrafluoroethylene electrode catalytically specific for oxygen reduction. The anode is a composite nickel matrix. The reaction at the anode is an electrochemical oxidation reaction but there are no soluble byproducts that contaminate the electrode. The reaction at the anode is a simple oxidation, state-of-change of the nickel in the nickel composite matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.