Reference electrode

Details Reference electrode Reference electrode

2005-03-01

2010-02-09

Nguyen, Nam X (Department: 1795)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S433000, C204S416000

Reexamination Certificate

active

07658826

ABSTRACT:
A reference electrode including a water-impermeable, non-conductive substrate having a surface; an electrically conductive metal/metal salt mixture layer in contact with the surface; a water-soluble alkali metal salt layer; and a water-impermeable barrier layer overlaying a portion of the alkali metal salt layer and a portion of the metal/metal salt layer, and a method for preparing same are described. When the reference electrode is placed in a water sample to be tested, water enters the exposed portion of the alkali metal salt layer where it dissolves the salt forming a saturated solution in the region of contact between the alkali metal salt layer and the metal/metal salt layer.

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