Determination of technetium-99 from complex matrix
Determination of technetium-99 from complex matrix
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DOI：
10.1007/s10967-012-2023-4
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发表时间：
2013-05
影响因子：
1.6
通讯作者：
Lixiong Wang;Lei Tang;Tongzai Yang;Yanqiu Yang;Liang Yang
中科院分区：
文献类型：
--
作者：
Lixiong Wang;Lei Tang;Tongzai Yang;Yanqiu Yang;Liang Yang
This paper reports an approach that can be used for efficient separation and determination of99Tc (as pertechnetate) after contamination of the environment by nuclear materials. The samples were decomposed by fusion in a mixture of potassium hydroxide and potassium nitrate. After fusion, technetium remains as the pertechnetate anion (TcO4−). The technetium was isolated from the sample by technique combining solvent extraction, anion exchange, then, again, solvent extraction. After separation,99Tc was measured by isotope-dilution mass spectrometry with97Tc as spike. This method yielded nanogram detection limits for99Tc.
