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Solvent extraction and extraction-voltammetric determination of phenols using room temperature ionic liquidстатья
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: 18 июля 2013 г.
- Авторы: Khachatryan K.S., Smirnova S.V., Torocheshnikova I.I., Shvedene N.V., Formanovsky A.A., Pletnev I.V.
- Журнал: Analytical and Bioanalytical Chemistry
- Том: 381
- Номер: 2
- Год издания: 2005
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 464
- Последняя страница: 470
- DOI: 10.1007/s00216-004-2872-y
- Аннотация: The phenolic compounds phenol, 4-nitrophenol, 2,4-dinitrophenol, 2,6-dinitrophenol, 1-naphthol, 2-naphthol, and 4-chlorophenol are extracted nearly quantitatively from aqueous solution into the room temperature ionic liquid 1-butyl-3-methylimidazolium hexauorophosphate (BMImPF(6)) in molecular form at pH < p K-a. Picric acid is extracted efficiently in anionic form. Recovery of pyrocatechol and resorcinol is much lower. The effect of pH, phenol concentration, and volume ratio of aqueous and organic phases were studied. Ionic liquid BMImPF(6) is shown to be suitable for extraction-voltammetric determination of phenols without back-extraction or addition of support electrolyte. The electrochemical window of BMImPF(6) at various electrodes was determined, and voltammetric oxidation of phenols and reduction of nitrophenols in BMImPF(6) was studied.
- Добавил в систему: Плетнев Игорь Владимирович