文献类型：期刊文献

英文题名：Separation of quercentin by pre-dispersed solvent extraction

作者：Hu, W; Sun, Y; Ye, RQ; Wu, SS; Liu, HL

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2003

卷号：11

期号：3

起止页码：367

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000184023900025)】；

语种：英文

外文关键词：pre-dispersed solvent extraction; quercentin; colloidal liquid aphron; separation

摘要：Pre-dispersed solvent extraction (PDSE) was used to extract quercentin from its diluted solution. The influences of temperature, phase volume ratio (PVR), concentration of sodium Dodecyl benzene sulphonate and pH value etc. on the extraction efficiency were examined. It is found that, compared with traditional extraction techniques under the same condition, a higher extraction productivity can be obtained by PDSE. The stability of colloidal liquid aphrons plays an important role in this process. In a certain scope, the extraction efficiency increases with PVR. Excessive amount of solvent is not much helpful. A new analytical method by using ultraviolet spectrometer to determine the concentration of quercentin is established.