Abstract
I HAVE found an unexpected dependence on the amount of carrier iodide1,2 of the recovery of radioactive iodide by solvent extraction of its aqueous solutions to which sodium nitrite has been added. The percentage recovery of the radioactive iodide by the solvent is inversely proportional to the amount of iodide in solution if the pH. is between 4 and 7. The relationship is linear for the range of concentrations of iodide which were tested, 0.01 µg to 0.1 µg, and the coefficient of variation of experimental results at the mid-point of the range was ±4 per cent.
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References
Kahn, M., Freedman, A., and Shultz, G., Nucleonics, 12, 72 (1954).
Anghileri, L. J., Intern. J. Appl. Radiat. Isotopes, 14, 381 (1963).
Oxby, C. B., thesis, Univ. Leeds (1965).
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OXBY, C. Recovery of Iodide-I131 from Aqueous Solutions of pH 5. Nature 213, 68 (1967). https://doi.org/10.1038/213068a0
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DOI: https://doi.org/10.1038/213068a0
