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Separation of inorganic anions on a high capacity porous polymeric monolithic column and application to direct determination of anions in seawaterстатья
Статья опубликована в высокорейтинговом журнале
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: 27 марта 2017 г.
- Авторы: Evenhuis C.J., Buchberger W., Hilder E.F., FIook K.J., Pohl C.A., Nesterenko P.N., Haddad P.R.
- Журнал: Journal of Separation Science
- Том: 31
- Номер: 14
- Год издания: 2008
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 2598
- Последняя страница: 2604
- DOI: 10.1002/jssc.200800205
- Аннотация: A commercially available 4.6 mm. id × 50 mm polymethacrylate-based monolithic strong anion exchange column (ProSwift™ SAX-1S) designed for the separation of proteins has been successfully used to separate small inorganic anions in the presence of a seawater sample matrix. Using a hydroxide eluent with suppressed conductivity detection the ion exchange capacity of this column declined over time; however, using KC1 as the eluent, the column performance was stable with a capacity of 530 μequiv. for nitrate. The optimum conditions for the separation of iodate, bromate, nitrite, bromide and nitrate were assessed by constructing van Deemter plots using 1.00 and 0.100 M KC1. Efficiencies of up to 26 700 plates/m were recorded using 1.00 M KCl, at a flow rate of 0.20 mL/min but iodate was not baseline resolved from the void peak. By reducing the concentration of the eluent to 0.100 M, efficiencies of up to 39900 plates/m could be obtained at 0.35 mL/min. By employing a linear gradient ranging from 0.05 to 1.00 M KCl the ions dissolved in distilled water or a salt water matrix could be baseline separated in less than 3 min at a flow rate of 2.50 mL/min. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
- Добавил в систему: Нестеренко Павел Николаевич