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Extraction-chromatographic behavior of Zr(IV) and Hf(IV) on TRU and LN resins in mixtures of HNO3 and HFстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 3 октября 2019 г.
- Авторы: Ekatova Taisya Yu, Kazakov Andrey G.
- Журнал: Journal of Radioanalytical and Nuclear Chemistry
- Том: 321
- Номер: 2
- Год издания: 2019
- Издательство: Akademiai Kiado
- Местоположение издательства: Hungary
- Первая страница: 557
- Последняя страница: 563
- DOI: 10.1007/s10967-019-06601-x
- Аннотация: The behavior of group-4 homologs Zr and Hf on extraction-chromatographic sorbents LN resin and TRU resin in mixtures of HF and HNO3 is considered. Distribution coefficients of the elements in the mixtures of 5·10−4 M–1 M HF and 0.01 M–5 M HNO3 are determined. Strong retention of both elements was found on LN resin in the range of concentrations c(HF) ≤ 0.01 M for all concentrations of HNO3. Retention tends to gradually disappear while increasing c(HF) to 0.5 M. On TRU resin retention is observed only in solutions with c(HNO3) ≥ 2 M and c(HF) ≤ 0.01 M. The possibility of separating Zr(IV) and Hf(IV) on LN resin is illustrated in two different acid mixtures, whereas their separation on TRU resin under the conditions studied in this work is difficult. The results obtained can be used to isolate analytes from multicomponent mixtures during analytical tasks, as well as to separate them from each other. DOI https://doi.org/10.1007/s10967-019-06601-x
- Добавил в систему: Казаков Андрей Геннадьевич