文献类型：期刊文献

英文题名：Measurement and Correlation of Partition Coefficients of Glycyrrhizic in Aqueous Two-phase EOPO/K2HPO4 Systems

作者：Huo, Qing[1];Lin, Qiang[1];Gao, Wei[1];Li, Haixia[1]

第一作者：霍清

通讯作者：Huo, Q[1]

机构：[1]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2010

卷号：22

期号：6

起止页码：4496-4500

外文期刊名：ASIAN JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000279844700050)】；

基金：This work was supported by Science and Technology Development Projection of Beijing Education Committee (00KJ-067).

语种：英文

外文关键词：Aqueous two-phase system; Temperature-induced phase separation; Glycyrrhizic ammonium salt; Ethylene oxide-propylene oxide random copolymer; Thermodynamic model

摘要：The partition behaviour of glycyrrhizic ammonium salt in ethylene oxide-propylene oxide random copolymer (EOPO)/K2HPO4/water systems was investigated. The optimum conditions were EOPO L64 28 %, K2HPO4 32 %, phase separation temperature was 63 C. yield of glycyrrhizic ammonium salt could reach 68.4 %. Based on the modified model In K/R = A* + b*(w degrees - w') + c*(w degrees - w')2, partition coefficients of glycyrrhizic in aqueous two-phase extraction system of EOPO/K2HPO4 aqueous two-phase systems were correlated. It was found that the correlation of the experimental data was quite satisfactory.