Method for the detection and measurement of noxious gases

Details Method for the detection and measurement of noxious gases Method for the detection and measurement of noxious gases

1975-10-10

1977-08-16

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204 1R, 204195R, G01N 2746

Patent

active

040424642

ABSTRACT:
Noxious gases are electrochemically detected and measured in the presence of carbon monoxide using a device employing an electrochemical cell whose sensing electrode comprises a carbon supported gold catalyst and is maintained at a fixed potential of about 0.4 volt to about 1.5 volt with respect to a reversible hydrogen electrode in said electrolyte of the electrochemical cell. In its preferred form the sensing electrode comprises carbon particles containing catalytic amounts of gold bonded to a hydrophobic material to provide a diffusion electrode.

REFERENCES:
patent: 3223597 (1965-12-01), Hersch
patent: 3776832 (1973-12-01), Oswin et al.
patent: 3909384 (1975-09-01), Jasinski et al.
patent: 3915831 (1975-10-01), Riseman et al.

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