The determination of total organic matter (carbon content) in aqueous media. Part I. Organic matter in aqueous plant streams
- 1 January 1967
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 92 (1096) , 436-442
- https://doi.org/10.1039/an9679200436
Abstract
The determination of total organic matter (carbon content) in aqueous liquors that are re-cycled in (or rejected from) organic chemical manufacturing processes is necessary so that the carbon balance can be calculated. A rapid method has been developed that involves the injection of the aqueous solution into a combustion tube containing copper(II) oxide, where all of the organic matter is oxidised to carbon dioxide; this is swept, with added hydrogen, through a catalyst to reduce it to methane, which is determined by using a flame-ionisation detector. Each test with 2 µl of sample containing 1 to 10 µg of carbon takes about 2 minutes. The reproducibility is estimated to be about ±5 per cent. of carbon content, which is adequate for the analysis of plant side streams.Keywords
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