| 摘要 |
Enzyme electrodes are described which are of reduced sensitivity to alcohol. The electrodes comprise a porous resin-bonded layer of powdered carbon or graphite, onto which the enzyme is immobilised, said layer containing either finely divided platinum oxide, or finely divided platinum the surface of which is provided with a thin oxide film, e.g. by an anodisation process, said finely divided platinum oxide or anodised platinum being uniformly dispersed throughout the resin-bonded carbon or graphite layer and preferably preadsorbed onto the surface of the powdered carbon or graphite prior to bonding. Also disclosed is a method of making such electrodes by a polarisation treatment of a preassembled platinised electrode. |
