Compact automated apparatus for rapid astatine recovery from nitric acid media: Design, application, and impurity characterization
Compact automated apparatus for rapid astatine recovery from nitric acid media: Design, application, and impurity characterization
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用于从硝酸介质中快速回收砹的紧凑型自动化装置：设计、应用和杂质表征
DOI：
10.1016/j.cej.2022.136176
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发表时间：
2022
影响因子：
15.1
通讯作者：
Harvey, Bryan
中科院分区：
文献类型：
--
作者：
Tereshatov, Evgeny E.;Burns, Jonathan D.;Schultz, Steven J.;McCann, Laura A.;McIntosh, Lauren A.;Tabacaru, Gabriel C.;Berko, Matthew;Engelthaler, Emily;Hannaman, Andrew;Harvey, Bryan
德克萨斯A&M大学已经实现了从硝酸介质中自动溶解辐照铋靶和从硝酸介质中回收铟。这一过程可以远程控制；在提取色谱柱分离上述元素之前，它不需要任何化学处理或溶解溶液的蒸发，使最终产品在20分钟内准备好。随之而来的放射性杂质已被鉴定并成功地从ASTIN中分离出来，导致所需组分的放射性纯度超过99%。该系统仅由一个泵和一组LabVIEW控制阀组成，并允许连接多达10个不同的柱，从而提供了制备各种空气干燥柱的机会，这些柱可以是不同的柱几何结构，其中包含可供进一步化学处理或装运到所需设施的硫化物。
Automation of irradiated bismuth target dissolution and astatine recovery from nitric acid media has been achieved at Texas A&M University. This process can be controlled remotely; it does not require any chemical treatment or evaporation of dissolution solution prior to the separation of above-mentioned elements on an extraction chromatography column, making the final product ready within 20 min. The accompanying radio-impurities have been identified and successfully separated from astatine, leading to greater than 99% radiopurity of the desired fractions. The system consists of only one pump and a set of LabVIEW controlled valves, and allows the connection of up to 10 different columns, providing the opportunity to prepare a variety of air dry columns, which can be different column geometries, containing astatine ready for further chemistry or shipment to desired facilities.