Development of Chronic Insertable Oxygen Electrodes.
Abstract
Work has been in progress towards developing oxygen sensing electrodes with long-term stability characteristics. There are two types of changes that can occur with oxygen electrode responses. One is noted by a comparatively rapid decrease in current output while the other is termed a slow drift of decreasing value in electrode current. The latter phenomenon has been called electrode 'aging' and it is toward the solution of this problem that a great deal of effort has been directed. A technique of periodically anodizing 02 sensing electrodes has been developed that appears to significantly delay or eliminate the slow downward drift in current. Stable electrode currents for periods of three days have been obtained. This periodic anodization seems to be effective only on electrodes whose surfaces have been activated by an anodization protocol. The process appears to work on bare tipped as well as membrane coated electrodes. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1976
- Accession Number
- ADA045718
Entities
People
- Allen W. Hahn
- Ronald E. Barr
Organizations
- University of Missouri