Aqueous carbon dioxide monitor

Details Aqueous carbon dioxide monitor Aqueous carbon dioxide monitor

1991-03-07

1993-10-12

Alexander, Lyle

Chemistry: analytical and immunological testing

Oxygen containing

Inorganic carbon compounds

422 8202, 422 90, 436 68, 436150, G01N 2706

Patent

active

052524914

ABSTRACT:
An apparatus and method for the measurement of low levels of carbon dioxide in a sample employing membrane separation and ion-exchange technology. The difference in acid strength of carbonic acid and other acids is exploited by treating the sample with a weak base in a membrane separator (10). In this manner, the carbonic acid is distinguished from the stronger acids.

REFERENCES:
patent: 2950176 (1960-08-01), Thayer et al.
patent: 4517135 (1985-05-01), Szerenyi et al.
patent: 4801551 (1989-01-01), Byers et al.

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