Method for the protection of and/or monitoring of changes in a r

Details Method for the protection of and/or monitoring of changes in a r Method for the protection of and/or monitoring of changes in a r

1985-03-29

1987-08-11

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204401, 204406, 204408, 204412, 204435, 324425, 324438, G01N 2730, G01N 2746

Patent

active

046860118

ABSTRACT:
Method for the protection and/or monitoring of a reference system with reference electrode in analytical measuring techniques, and reference system therefor, wherein an additional monitor electrode is provided for self-monitoring the outer bridge electrolyte (16) for contamination, the additional monitor electrode being arranged to permit measuring of the pH value (pX value) of the bridge electrolyte which is adjusted to the same pH value (pX value) as the reference electrolyte. A fault signal is released when a potential difference occurs between the additional electrode and the real reference electrode of the reference system. Further, the bridge electrolyte is preferably connected with the measured solution in pressure-balancing relationship via a flexible diaphragm arranged in the wall of the vessel containing the bridge electrolyte which diaphragm may also be designed to serve as mounting for the said first diaphragm.

REFERENCES:
patent: 4461998 (1984-07-01), Kater
patent: 4592823 (1986-06-01), Gregory

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