Abstract
A coulometric method was applied to the simultaneous determination of carbon and hydrogen in the decimilligram amount of organic compounds. Samples were burned in a nitrogen stream with a rapid combustion system using Co 3O 4 as an oxygn donor. The H 2O and CO 2 produced were swept into a Pt-P 2O 5 hygrometer and a pulse titration cell, respectively, where they were electrolyzed. From the electrolytic quantities required for the measurement of CO 2 and H 2O, the carbon and hydrogen content was determined. The analysis time required was 15 minutes. Satisfactory analytical results were obtained for the analysis of several standard organic compounds. A more rapid method was also developed which required 7 minutes for a sample.
Published Version
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