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

被引：16
|
作者：
Nishinaka, I. [1 ]
Hashimoto, K. [1 ]
Suzuki, H. [2 ]
机构：
[1] Natl Inst Quantum & Radiol Sci & Technol, Takasaki Adv Radiat Res Inst, Tokai Quantum Beam Sci Ctr, Shirakata Shirane 2-4, Tokai, Ibaraki 3191106, Japan
[2] Chiba Univ, Grad Sch Pharmaceut Sci, Chuo Ku, Inohana 1-8-1, Chiba 2608675, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 322卷 / 03期
关键词：
Astatine anions; Thin layer chromatography; Oxidation and reduction degree; Volatility of At-0; STABILITY-CONSTANTS; COMPLEXES; CHEMISTRY; LIGANDS; AT(I);
D O I：
10.1007/s10967-019-06900-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Radio-chromatography was conducted by using the astatine radionuclides At-209,At-210,At-211 produced in the Li-7 induced reaction of Bi-209. 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 At-0 (0) and release it from a silica gel thin layer in the development.
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页码：2003 / 2009
页数：7
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