Electrochemical measuring cell for determining ammonia or hydraz

Details Electrochemical measuring cell for determining ammonia or hydraz Electrochemical measuring cell for determining ammonia or hydraz

1991-12-11

1993-07-20

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

20415314, 2041532, 204290R, 204291, 204402, G01N 27404

Patent

active

052289745

ABSTRACT:
The invention is directed to an electrochemical measuring cell for measuring ammonia or hydrazine and includes at least a measuring electrode and a counter electrode in an electrolyte. The measuring cell provides a signal increase having a shorter response time and an improved signal stability. For this purpose, the electrolyte is an aqueous solution of a hygroscopic salt of an alkali metal or earth alkali metal such as calcium nitrate or lithium nitrate or a mixture of both salts.

REFERENCES:
patent: 3260656 (1966-07-01), Ross
patent: 3515658 (1970-06-01), Amdur
patent: 3830718 (1974-08-01), Riseman et al.
patent: 4900405 (1990-02-01), Otagawa et al.

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