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Sorption of a Complex of Europium (III) with Acetylacetone on Hydrophobized Hexadecyl Silica Gel and Hyper Crosslinked Polystereneстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
- Авторы: Bikmullina A.R., Tereshchenkova A.A., Statkus M.A., Tikhomirova T.I.
- Журнал: Moscow University Chemistry Bulletin
- Том: 68
- Номер: 4
- Год издания: 2013
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 186
- Последняя страница: 190
- DOI: 10.3103/S0027131413040032
- Аннотация: The sorption of a complex of europium (III) with acetylacetone on silica gel chemically modified with hexadecyl groups (SiO 2 –C 16 ) and hyper crosslinked polystyrene (HLPS) was studied. Maximum extrac? tion was observed at pH 5–7 when SiO 2 –C 16 was used as the sorbent and at pH 4–7 in the case of crosslinked polystyrene. The partition coefficients for HLPS and silica gel were calculated as 7 × 10 3 and 1 × 10 2 cm 3 /g, respectively. Quantitative extraction of the europium (III) complex was possible in dynamic conditions using a microcolumn (length, 10 mm; internal diameter, 3mm) packed with HLPS at pH 5 (10–50 mL sample vol? ume). Desorption of europium using solutions of nitric acid at different concentrations was investigated. Quantitative desorption was achieved using 5 mL of 1 M HNO 3 . A linear range of detection was observed at an amount of europium from 5 to 25 μ g in a 10?mL sample (650 nm).
- Добавил в систему: Статкус Михаил Александрович