Measurement and Correlation of Partition Coefficients of Baicalin in EOPO/Salt Aqueous Two-Phase Systems

被引：0
|
作者：
李伟
朱自强
机构：
[1] Department of Chemical and Biochemical Engineering
[2] Zhejiang University
[3] Zhejiang University Hangzhou 310027
[4] China
[5] College of Environmental and Resource Sciences
来源：
Chinese Journal of Chemical Engineering | 2002年 / 06期
基金：
中国国家自然科学基金;
关键词：
aqueous two-phase system; ethylene oxide and proplene oxide; partition coefficient; baicalin;
D O I：
暂无
中图分类号：
O642 [化学热力学、热化学、热力学平衡];
学科分类号：
摘要：
The partition coefficients of baicalin were measured in ethylene oxide and propylene oxide (EOPO)/salt aqueous two-phase systems at 298.15K. It was found that most of baicalin partitioned into EOPO-rich phase. The partition coefficients of baicalin varied from 10 to 120. The effect of various factors, including tie-line length, salt composition, molecular weight of EOPO, and solution pH, on the partition behavior was investigated in EOPO/salt systems. Furthermore the partition coefficients of baicalin were correlated using the modified Diamond-Hsu model. Good agreement with experimental data is obtained. The average relative deviations are less than 5.0%.
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页码：37 / 40
页数：4
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