Carbon dioxide measurement

Details Carbon dioxide measurement Carbon dioxide measurement

1982-04-15

1983-03-22

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204195P, G01N 2746

Patent

active

043774466

ABSTRACT:
Carbon dioxide in the presence of oxygen is sensed by passage of the gas mixture through a layer of polymeric material and through a first, porous, working electrode in contact with a layer of aqueous electrolyte any oxygen being reduced at the electrode; any CO.sub.2 gas passes through the aqueous electrolyte and through a CO.sub.2 -permeable layer of polymeric material to a layer of non-aqueous solvent in contact with a second working electrode at which any CO.sub.2 gas is reduced, causing a current to flow.

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patent: 3708412 (1973-01-01), Lofgren
patent: 3719576 (1973-03-01), Macur
patent: 4268370 (1981-05-01), Neti et al.
Electrochemistry of Carbon Dioxide in Dimethyl Sulfoxide at Gold and Mercury Electrodes, Haynes and Sawyer, Analytical Chemistry, pp. 332-338.
Journal of Electroanalytical Chemistry, Voltammetric Determination of Carbon Dioxide using Dimethylsulfoxide as a Solvent, Roberts and Sawyer, J. Electroanal. Chem., 9 (1965), pp. 1-7.

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