Abstract
A coulometric method is described for the decimilligram determination of carbon and hydrogen in organic compounds which involves rapid combustion in a nitrogen stream. Carbon dioxide and water derived from the combustion are introduced into a Porapak T column for separation. Then the carbon dioxide is converted to the equivalent amount of water with a LiOH converter. These quantities of water are continuously swept into a diffusion type Pt-P2O5 electrolytic cell and determined coulometrically one after the other. The electrolysis current passing through the hygrometer is automatically integrated. The analysis time is 10–12 minutes and the absolute errors are within ±0.80% for carbon and ±0.67% for hydrogen.
Published Version
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