Electrochemical gas detection method

Details Electrochemical gas detection method Electrochemical gas detection method

1981-04-29

1985-06-18

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204412, 204432, G01N 2746

Patent

active

RE0319147

ABSTRACT:
An electrochemical cell comprising an anode, a cathode and a reference electrode operating in an aqueous electrolyte is utilized for detection of noxious gases in air. The gas is oxidized at the anode and detection thereof occurs as a result of the current generated by the reaction. A fixed potential difference is maintained between the anode and the reference electrode to avoid generation of undesired current from reactions involving an oxygen-water redox couple within the cell which would invalidate anode-cathode current for gas detection purposes. The fixed potential is chosen from within the range of about 0.9 to 1.5 volts.

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