Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For ph
Reexamination Certificate
2007-10-02
2007-10-02
Noguerola, Alex (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For ph
C205S789000, C204S433000, C204S418000
Reexamination Certificate
active
10621400
ABSTRACT:
An object of the present invention is to suppress an electric potential drift as described above and improve pH measurement precision in order to obtain practical measurement precision in the dry-type multilayered film-type pH electrode. The present invention provides a complex pH electrode which has at least two ion-selective electrodes comprising a non-conductive support, a pair of electrode layers, an electrolytic layer and an ion-selective membrane where at least one of the ion-selective electrode is a hydrogen ion-selective electrode, wherein the hydrogen ion-selective membrane is saturated with carbon dioxide gas.
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Seshimoto Osamu
Terashima Masaaki
Birch & Stewart Kolasch & Birch, LLP
FUJIFILM Corporation
Noguerola Alex
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