Determination of I-127 and I-129 in environmental samples by ICP-MS
- National Institute of Radiological Sciences, Ibaraki (Japan)
Iodine is an essential nutrient elements for humans and it plays an important role in thyroid gland function. From the viewpoint of radiation protection, attention should be paid to man-made radioiodine isotopes (e.g., {sup 129}I and {sup 131}I) in the environment. Because of the long radiological half-life of {sup 129}I (1.6 x 10{sup 7} y), this nuclide will accumulate in the terrestrial environment. In spite of iodine`s importance, analytical data are lacking on both stable iodine ({sup 127}I) and {sup 129}I in environmental materials. This is mainly due to their difficult analyses. Previously,the authors used neutron activation analysis (NAA) for {sup 127}I and {sup 129}I. Now, the authors have used inductively coupled plasma mass spectrometry (ICP-MS) for the analysis of iodine in environmental materials such as water, soil, and plant samples. The authors also considered the applicability of ICP-MS to the determination of {sup 129}I.
- OSTI ID:
- 273582
- Report Number(s):
- CONF-960113--
- Country of Publication:
- United States
- Language:
- English
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