Speciation of astatine reacted with oxidizing and reducing reagents by thin layer chromatography: formation of volatile astatine

被引：0

作者：

I. Nishinaka

K. Hashimoto

H. Suzuki

机构：

[1] National Institutes for Quantum and Radiological Science and Technology,Tokai Quantum Beam Science Center, Takasaki Advanced Radiation Research Institute

[2] Chiba University,Graduate School of Pharmaceutical Sciences

来源：

Journal of Radioanalytical and Nuclear Chemistry | 2019年 / 322卷

关键词：

Astatine anions; Thin layer chromatography; Oxidation and reduction degree; Volatility of At;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Radio-chromatography was conducted by using the astatine radionuclides 209,210,211At produced in the 7Li induced reaction of 209Bi. The speciation of dissolved astatine chemical species of astatide (At−), astatate (AtO3−) and perastatate (AtO4−) was carried out by thin layer chromatography on silica gel with an ethanol/water solution. Amounts of the astatine species varied with concentrations of oxidizing and reducing reagents, potassium periodate, sodium sulfate and hydrazine hydrate. The oxidation–reduction reactions between At−(−I) and AtO3− (V) were found to form volatile At0 (0) and release it from a silica gel thin layer in the development.

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页码：2003 / 2009

页数：6

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