Thin layer chromatography for astatine and iodine in solutions prepared by dry distillation
Thin layer chromatography for astatine and iodine in solutions prepared by dry distillation
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DOI：
10.1007/s10967-018-6088-6
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发表时间：
2018-11-01
影响因子：
1.6
通讯作者：
Suzuki, H.
中科院分区：
文献类型：
--
作者：
Nishinaka, I.;Hashimoto, K.;Suzuki, H.
用Li-7束辐照铅和锡靶堆，同时产生了At-208、At-209、At-210、At-211和I-120、I-121、I-123。用干馏法从辐照过的靶中分别分离出<$和碘放射性核素。使用乙醇或水作为溶剂制备无载体添加的<$和碘溶液。使水溶液中的Astatine与氧化剂或还原剂反应。用乙醇/水溶液在硅胶上通过薄层色谱法分离溶液中的<$A和碘离子。与标准碘相比，标准品中的At-、AtO 3-和AtO 4-阴离子分别被分离和鉴定为Astatin，而I为I-。
The astatine radionuclides At-208,At-209,At-210,At-211 and the iodine radionuclides I-120,I-121,I-123 were simultaneously produced by Li-7 beam irradiation of a stack of lead and tin targets. The astatine and the iodine radionuclides each were separated from the irradiated target with a dry distillation method. No-carrier-added astatine and iodine solutions were prepared using ethanol or water as a solvent. Astatine in the aqueous solution was reacted with an oxidizing or a reducing agent. Separation of the astatine and the iodine ions in the solutions was conducted by thin layer chromatography on silica gel with an ethanol/water solution. Astatine was separated and identified as anions of At-, AtO3- and AtO4-, while iodine was I-, compared with the standard iodine species.