A study on the association of two iodine isotopes,of natural127I and of the fission product129I,with soil components using a sequential extraction procedure |
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Authors: | K. Schmitz D. C. Aumann |
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Affiliation: | (1) Institut für Physikalische Chemie, Abt. Nuklearchemie, Universität Bonn, Wegelerstr. 12, 53115 Bonn, (Germany) |
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Abstract: | Sequential extraction techniques have been utilized in order to investigate the degree of binding or association of natural iodine127I and the radioactive iodine isotope129I with soil components. The results indicate that only a small fraction of natural iodine (2.5–4%) but a large fraction of the recently added radioactive129I (38–49%) is water-soluble. The other forms of iodine which were determined for both iodine isotopes were exchangeable iodine, iodine bound to metal-oxides and iodine bound to organic matter. |
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