Electrochemical measuring cell for detecting gases and vapors

Details Electrochemical measuring cell for detecting gases and vapors Electrochemical measuring cell for detecting gases and vapors

1992-09-11

1994-05-31

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204412, 204416, 204418, 204419, 204290R, 204283, G01N 2726

Patent

active

053166485

ABSTRACT:
An electrochemical measuring cell has a three-electrode system including electrode, counter electrode and reference electrode in an electrolyte. The measuring cell has an additive promoting the electrochemical reaction and is selective and highly sensitive for the detection of hydrogen halides and also provides a stable measuring signal. A measuring cell of this kind has an additive of tetrachloroauric acid in the electrolyte for detecting hydrochloric acid with all electrodes being made of gold. The counter electrode is protected by a cation exchange membrane to provide a further improvement.

REFERENCES:
patent: 3124520 (1964-03-01), Juda
patent: 3239444 (1966-03-01), Heldenbrand
patent: 4961834 (1990-10-01), Kuhn et al.
patent: 5041204 (1991-08-01), Kuhn et al.
patent: 5084144 (1992-01-01), Reddy et al.
patent: 5133842 (1992-07-01), Taylor et al.

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