Oxygen electrode

G - Physics – 01 – N

Patent

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G01N 27/30 (2006.01)

Patent

CA 2575635

The structure of an oxygen electrode which can be formed at such a low cost that the oxygen electrode can be disposable. An oxygen electrode (2) is used for measuring the dissolved oxygen in a liquid culture medium, and comprises an electrode parent material (10) and a surface metal layer (13) composed of any one of Au, Pt or Ti covering the surface of the electrode parent material (10). In particular, when the surface metal layer (13) of Au is formed on the electrode parent material (10) composed of copper by electroplating, a nickel layer (11) is deposited on the surface of the electrode parent material (10) by electroplating or the like. Subsequently, the Au layer (13) is deposited on the nickel layer (11) by electroplating.

Structure d~électrode oxygène qui peut être formée à un coût si bas que l~électrode oxygène peut être jetable. Une électrode oxygène (2) est utilisée pour mesurer l~oxygène dissous dans un moyen de culture liquide, et comprend un matériel parent électrode (10) et une couche métallique de surface (13) composée d~un quelconque Au, Pt or Ti couvrant la surface du matériel parent électrode (10). En particulier, lorsque la couche métallique de surface (13) d~Au est formée sur le matériel parent électrode (10) composé de cuivre par électroplastie, une couche de nickel (11) est déposée sur la surface du matériel parent électrode (10) par électroplastie ou similaire. Ultérieurement, la couche d~Au (13) est déposée sur la couche de nickel (11) par électroplastie.

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