Method of detecting carbon dioxide in a gaseous or liquid sample

Details Method of detecting carbon dioxide in a gaseous or liquid sample Method of detecting carbon dioxide in a gaseous or liquid sample

1988-09-16

1989-07-11

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

G01N 2756

Patent

active

048469378

ABSTRACT:
A method is disclosed for determining carbon dioxide content in gaseous or liquid samples. A semi-permeable membrane-type sensor comprising a sensor electrode, reference electrode and an electrolyte having a pH range of 9.5-11.0 or 10.7-12.0 is used. Potential between the electrodes is monitored as a measure of carbon dioxide in the sample. When an electrolyte having a pH range of 10.7-12.0 is used the electrolyte additionally contains at least 255 v/v of a water miscible solvent having dielectric constant of a least 10.

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