کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9743888 | 1491201 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Extraction of phenols and phenyl acetates with diethyl carbonate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Extraction of 11 selected phenols and their acetyl derivatives by diethyl carbonate was studied and compared with extraction into hexane and toluene. Diethyl carbonate is the most effective solvent and enables high recoveries of both phenols and their acetyl derivatives. The high recovery of phenols can be explained by the formation of a hydrogen bond between the hydroxyl group of phenols and the oxygen atom of the carbonate group. The extraction of phenols can be further increased in the presence of an electrolyte. The efficiency of extraction depends mainly upon phenol hydrophobicity and significantly increases with an increase in the solute molar volume and octanol-water partition coefficient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 535, Issues 1â2, 11 April 2005, Pages 251-257
Journal: Analytica Chimica Acta - Volume 535, Issues 1â2, 11 April 2005, Pages 251-257
نویسندگان
Jacek Olejniczak, Jacek Staniewski, Jan Szymanowski,