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Solvent extraction of amino acids into a room temperature ionic liquid with dicyclohexano-18-crown-6статья
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: Smirnova S.V., Torocheshnikova I.I., Formanovsky A.A., Pletnev I.V.
- Журнал: Analytical and Bioanalytical Chemistry
- Том: 378
- Номер: 5
- Год издания: 2004
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 1369
- Последняя страница: 1375
- DOI: 10.1007/s00216-003-2398-8
- Аннотация: Amino acids Trp, Gly, Ala, Leu are extracted efficiently from aqueous solution at pH 1.5-4.0 (Lys and Arg at pH 1.5-5.5) into the room temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BmimPF(6)) with dicyclohexano-18-crown-6 (CE). The most hydrophilic amino acids such as Gly are extracted as efficiently as the less hydrophilic (92-96%). The influence of pH, amino acid and crown ether concentration, volume ratio of aqueous and organic phases, and presence of some cations on amino acid recovery were studied. The ratio of amino acid to crown ether in the extracted species is 1:1 for cationic Trp, Leu, Ala, and Gly and to 1:2 for dicationic Arg and Lys. This ionic liquid extraction system was used successfully for the recovery of amino acids from pharmaceutical samples and fermentation broth, and was followed by fluorimetric determination.
- Добавил в систему: Плетнев Игорь Владимирович