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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：中国化学会创始会士、常务理事，中国化工学会会士
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工. 化学生物学
办公地点：大连理工大学西部校区知顺楼F-202#
http://peng-group.dlut.edu.cn/
联系方式：大连理工大学西部校区知顺楼F-202 辽宁省大连市高新区凌工路2号，大连116024 课题组网址：http://peng-group.dlut.edu.cn/ E-mail: pengxj@dlut.edu.cn
电子邮箱：pengxj@dlut.edu.cn
Preparative separation of a challenging anthocyanin from Lycium ruthenicum Murr. by two-dimensional reversed-phase liquid chromatography/hydrophilic interaction chromatography
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论文类型：期刊论文
发表时间：2015-01-01
发表刊物：RSC ADVANCES
收录刊物：SCIE、EI、Scopus
卷号：5
期号：76
页面范围：62134-62141
ISSN号：2046-2069
摘要：The preparative separation of anthocyanins by HPLC often suffers from insufficient separation selectivity. In this work, a two-dimensional liquid (LC-LC) method was established to efficiently purify a challenging anthocyanin in Lycium ruthenicum Murray. Reversed phase liquid chromatography (RPLC) was used in the first-dimension preparation to fractionate the sample for its high separation efficiency. After the optimization of second-dimension methods, hydrophilic interaction chromatography (HILIC) was applied to further isolate the anthocyanin for the good orthogonality to RPLC. To improve HILIC separation for anthocyanins, stationary phases and mobile phases were investigated systematically. A satisfactory result was obtained on a zwitterionic Click XIon column with 1% phosphoric acid as an acidic additive. Using the above method, the anthocyanin and three new alkaloids were isolated from L. ruthenicum for the first time. This RPLC/HILIC method solved the coelution problem of anthocyanin and basic non-anthocyanins in one-dimensional HPLC, benefiting from the significantly improved separation resolution.