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Preconcentration of Anionic Forms of Chemical Elements on Filters with Anchored Quaternary Ammonium Groupsстатья
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: 19 сентября 2015 г.
- Авторы: Tikhomirova T.I., Sorokina N.M., Lashtabega O.O., Konshina D.N., Konshin V.V., Temerdashev Z.A., Tsizin G.I.
- Журнал: Moscow University Chemistry Bulletin
- Том: 63
- Номер: 6
- Год издания: 2008
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 333
- Последняя страница: 337
- DOI: 10.3103/S0027131408060060
- Аннотация: Sorption of silicomolybdic acid (SMA) and phosphovanadomolybdic acid (PVMA) and arsenic(V), vanadium(V), and chromium(VI) anionic species is studied on cellulose filters with bound quaternary ammonium groups. These heteropoly acids (HPAs) are recovered in quantity on filters from solutions with high salt backgrounds and with high mineral acid concentrations. , , and anions are sorbed at pH of 3–9. In this case, the ionic strength considerably influences anion recovery. Conditions were found for preconcentrating vanadium, arsenic, and chromium from 250-mL aliquots of aqueous solutions (the preconcentration coefficient was 5×103). A procedure was proposed for the sorption/X-ray fluorescence determination of these elements in high-purity water.
- Добавил в систему: Цизин Григорий Ильич