Abstract
A direct and a diffusion method to be applied when measuring 14C labelled carbon dioxide by productivity measurements in natural water have been described. The labelled carbonate was trapped by 1 N solutions of NaOH, KOH or Ba(OH)2. Results comparable to those obtainable the biological method are achieved when using 100 μl of a 1 N KOH solution as a fixation reagent. The radiocarbonate fixed in this way was found to be stable for several days when dried, cooled, and stored in a desiccator. The reliability of these methods was demonstrated by analysing solutions containing various amounts of 14C labelled carbonate.
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Communicated by B. Swedmark, Fiskebäckskil
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Føyn, E., Hanneborg, S. Determination of 14C labelled carbonate in solution. Marine Biology 8, 57–59 (1971). https://doi.org/10.1007/BF00349345
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DOI: https://doi.org/10.1007/BF00349345