摘要
建立了基于反相液相制备色谱和超临界流体制备色谱的组合方法,用于分离纯化醇提水沉后石油醚层中的海风藤。首先以甲醇作为改性剂,采用醇提水沉法去除海风藤甲醇提取物中的叶绿素,加入硅藻土后用石油醚回流富集目标成分。选用反相C18制备色谱柱将其分为18个组分,然后将组分在SFC模式下进行制备。选用酰胺色谱柱,以甲醇为改性剂,在柱温30℃、背压15.0 MPa的条件下进行分离。基于反相色谱和超临界流体色谱不同的分离选择性,最后分离得到6个高纯度化合物。该法展示了反相制备色谱和超临界流体制备色谱在海风藤分离纯化方面的优势,特别是超临界流体色谱在天然产物的分析和制备方面的巨大潜力。
A method based on preparative reversed-phase liquid chromatography（prep-RPLC）and preparative supercritical fluid chromatography（prep-SFC）was developed for the separation and purification of compounds from piper kadsura. A pretreatment method was first developed,including methanol extraction,water precipitation,petroleum ether extraction,etc.Chlorophyll and other strong polar impurities were removed from the piper kadsura samples,and the target components were enriched in petroleum ether extracts. The piper kadsura samples were separated into 18 fractions on a Unitary C18 column（250 mm × 20 mm,5 μm）with water and methanol as the mobile phases. Then,the SFC parameters,including the column,modifier,temperature,and backpressure were optimized. The optimized conditions for prepSFC were as follows：XAmide column（250 mm×20 mm,5 μm）,methanol as the modifier,30℃ column temperature,and 15. 0 MPa backpressure. Because of the good orthogonality of RPLC and SFC,six highly pure compounds were isolated,including kadsurenone,wallichinine,denudatin B,pellitorine,2 E-decenoic acid N-isobutylamide,and futoxide.
作者
辛华夏
彭子悦
江大森
傅青
金郁
梁鑫淼
XIN Huaxia;PENG Ziyue;JIANG Dasen;FU Qing;JIN Yu;LIANG Xinmiao(School of Pharmacy,East China University of Science and Technology,Shanghai 200237, China;Key Laboratory of Separation Science for Analytical Chemistry （ CAS）, Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023, China)
出处
《色谱》
CAS
CSCD
北大核心
2018年第5期474-479,共6页
Chinese Journal of Chromatography
基金
中央高校基本科研业务费专项基金(222201717016)
关键词
超临界流体色谱
反相液相色谱
制备色谱
分离纯化
海风藤
supercritical fluid chromatography （SFC）
reversed-phase liquid chromatography （RPLC）
preparative （prep） chromatography
separation and purification
piper kadsura
