Method of judging absorption capacity of carbon dioxide...

G - Physics – 01 – N

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G01N 21/61 (2006.01) B01D 53/14 (2006.01) G01N 21/35 (2006.01)

Patent

CA 2592194

A method of judging the absorption capacity of a carbon dioxide absorbent for use in an isotopic gas analyzing method for measuring the concentration of carbon dioxide 13CO2 in a gas specimen containing carbon dioxide 13CO2 and carbon dioxide 12CO2 as component gases, comprising: performing a first light intensity measuring process by introducing air having passed through a vessel containing carbon dioxide absorbent into the cells; performing a second light intensity measuring process by introducing air not having passed through the vessel containing carbon dioxide absorbent into the cells; comparing the ratio of the light intensity measured in the first light intensity measuring step to the light intensity measured in the second light intensity measuring step with a threshold; and judging the absorption capacity of the carbon dioxide absorbent.

Méthode permettant d'estimer la capacité d'absorption d'un absorbant de dioxyde de carbone destiné à être utilisé dans une méthode d'analyse isotopique des gaz pour mesurer la concentration de dioxyde de carbone 13CO2 dans un échantillon de gaz contenant du dioxyde de carbone 13CO2 et du dioxyde de carbone 13CO2. La méthode consiste à effectuer une première mesure de l'intensité lumineuse, cela en introduisant dans les cellules de l'air ayant traversé une cuve contenant l'absorbant de dioxyde de carbone, puis à effectuer une seconde mesure de l'intensité lumineuse en introduisant dans les cellules de l'air n'ayant pas traversé une cuve contenant l'absorbant de dioxyde de carbone; on compare ensuite le rapport entre la première et la seconde mesure de l'intensité lumineuse avec une valeur de référence, et on estime la capacité d'absorption de l'absorbant de dioxyde de carbone.

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