Method for the determination of total carbon in aqueous...

Details Method for the determination of total carbon in aqueous... Method for the determination of total carbon in aqueous...

G - Physics

01

N

150/19, 73/93, 7

G01N 31/12 (2006.01) B01J 23/74 (2006.01) G01N 31/00 (2006.01) G01N 33/18 (2006.01)

Patent

CA 1040083

ABSTRACT OF THE DISCLOSURE A method for the determination of total carbon, calculated as carbon dioxide, present in aqueous solutions containing organic compounds and/or inorganic carbonates by mixing the aqueous solutions with a solid reagent active at elevated temperature for the displacement of carbon dioxide from inorganic carbonates, contacting the mixture with oxygen at elevated temperature whereby carbon dioxide is produced by oxidation of organic compounds and by displacement from any inorganic carbonates present, drying the carbon dioxide so produced, separating the carbon dioxide from the oxygen by selective adsorption on a bed of particulate adsorbent which preferentially retards the passage of carbon dioxide, flushing the bed with inert gas to displace the oxygen, thereafter eluting the carbon dioxide by raising the temperature and reversing the flow of inert gas through the bed and finally measuring the eluted carbon dioxide.

222236

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