Specific-ion gas-sensing carbonate analyzer

Details Specific-ion gas-sensing carbonate analyzer Specific-ion gas-sensing carbonate analyzer

1982-02-24

1983-08-09

Marantz, Sidney

Chemistry: analytical and immunological testing

Oxygen containing

Inorganic carbon compounds

436146, 436175, 436181, G01N 2726, G01N 2740, G01N 2756

Patent

active

043979572

ABSTRACT:
A method for determining the concentration of carbonate salts in solutions containing other inorganic salts. The method includes converting the carbonate salts to carbon dioxide by acidifying the sample, sweeping the acidified solution with an inert gas to strip the carbon dioxide from the solution and contacting an ion-selective gas-sensing electrode with the gas stream. The electrode includes a buffered solution which changes in pH depending on the concentration of carbon dioxide in the gas stream thereby providing a measure of the carbonate salt concentration in the sample.

REFERENCES:
patent: 3689222 (1972-09-01), McFarland et al.
patent: 3801281 (1974-04-01), Thompson
patent: 3939693 (1976-02-01), Dumont
patent: 4018660 (1977-04-01), Hansen
patent: 4019862 (1977-04-01), Dahms
patent: 4046510 (1977-09-01), Becker
patent: 4063891 (1977-12-01), Becker
patent: 4196056 (1980-04-01), Kumar
H. H. Willard et al., "Advanced Quantitative Analysis," pp. 317-320, D. Van Nostrand, New York, 1943.
Chemical Abstracts, 82:67702s (1975).

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