pH electrode and methods of preparing and using same

Details pH electrode and methods of preparing and using same pH electrode and methods of preparing and using same

2005-03-01

2005-03-01

Olsen, Kaj K. (Department: 1753)

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

For ph

C204S433000, C204S416000, C427S058000, C427S126100

Reexamination Certificate

active

06860984

ABSTRACT:
A pH electrode having a pH-sensitive region on an electrically conductive support, said pH-sensitive region comprisinga mixture ofbetween 50% and 85% of the total mixture by weight of particles of a Group VA or Group VIII metal incorporated in, or applied to, a polymer substrate of a non-shrinking plastic selected from polyimides, the polymer substrate having a resistivity of 10 to 100 Kohms/squarethe metal particles including antimony particlesand, when said particles are incorporated into said resistive polymer substrate, having said pH-sensitive region abraded to expose said particles.

REFERENCES:
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patent: 4561963 (1985-12-01), Owen et al.
patent: 5480534 (1996-01-01), Kato et al.
patent: 114 866 (1975-08-01), None
patent: 0757246 (1997-02-01), None
patent: 2289541 (1995-11-01), None
Caplus abstract for Gao et al, Chengdu Keji Daxue Xuebao, 1986, 2, pp. 73-78.*
Abstract for JP 10183029-A, Ishikawajima Harima Heavy Ind., Jul. 7, 1998.*
Abstract for SU 620390 A, Riga Med. Inst., Jul. 7, 1978.*
Mascini et al, Analytica Chimica Acta, 92 (1977), pp. 277-283.*
Caplus abstract for Mascini, Ion-Sel. Electrodes Conf. (1978), pp, 463-465.

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