Ion-exchange separation of radioiodine and its application to production of 124I by alpha particle induced reactions on antimony
-
Md. Shuza Uddin
,
Syed M. Qaim
Abstract
The basic parameters related to radiochemical separation of iodine from tellurium and antimony by anion-exchange chromatography using the resin Amberlyst A26 were studied. The separation yield of 124I amounted to 96% and the decontamination factor from 121Te and 122Sb was > 104. The method was applied to the production of 124I via the 123Sb(α, 3n) reaction. In an irradiation of 110 mg of natSb2O3 (thickness ∼ 0.08 g/cm2) with 38 MeV α-particles at 1.2 μA beam current for 4 h, corresponding to the beam energy range of Eα = 37 → 27 MeV, the batch yield of 124I obtained was 12.42 MBq and the 125I and 126I impurities amounted to 3.8% and 0.7%, respectively. The experimental batch yield of 124I amounted to 80% of the theoretically calculated value but the level of the radionuclidic impurities were in agreement with the theoretical values. About 96% of the radioiodine was in the form of iodide and the inactive impurities (Te, Sb, Sn) were below the permissible level. Due to the relatively high level of radionuclidic impurity the 124I produced would possibly be useful only for restricted local consumption or for animal experiments.
Acknowledgement
M. S. Uddin specially thanks the Alexander von Humboldt Foundation for financial support to conduct this research work. The authors thank the operation crew of the CGR-560 cyclotron of the Vrije Universiteit Brussel (VUB), Brussels, Belgium, the Baby Cyclotron BC1710 of the Forschungszentrum Jülich and the TRIGA Mark II reactor of AERE, Savar, Bangladesh, for their help in performing the irradiations.
©2015 Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Americium(III) oxidation by copper(III) periodate in nitric acid solution as compared with the action of Bi(V) compounds of sodium, lithium, and potassium
- Observations of surface-mediated reduction of Pu(VI) to Pu(IV) on hematite nanoparticles by ATR FT-IR
- Solution composition and particle size effects on the dissolution and solubility of a ThO2 microstructural analogue for UO2 matrix of nuclear fuel
- Isolation of 163Ho from dysprosium target material by HPLC for neutrino mass measurements
- Ion-exchange separation of radioiodine and its application to production of 124I by alpha particle induced reactions on antimony
- Formulation and evaluation of freeze-dried DOTMP kit for the preparation of clinical-scale 177Lu-DOTMP and 153Sm-DOTMP at the hospital radiopharmacy
- Using polycarbonate dyed with dansyl chloride for dosimetry in radiation processing
