[關鍵詞]
[摘要]
目的 采用高速逆流色譜法分離制備多花蒿中阿格拉賓。方法 多花蒿乙醇提取物經硅膠柱色譜分離,所得組份Fr. 1用高速逆流色譜進一步分離,采用正己烷–醋酸乙酯–甲醇–水(1.2∶0.8∶1.5∶0.5)為兩相溶劑系統(tǒng),上相為固定相,下相為流動相,主機轉速850 r/min,體積流量2.0 mL/min,檢測波長為254 nm。采用波譜法對所得化合物進行結構鑒定,HPLC法測定產品的純度。結果 從500 mg組分Fr. 1中得到260 mg質量分數為99.5%的阿格拉賓。結論 該方法操作簡單,可用于阿格拉賓化學對照品的分離制備。
[Key word]
[Abstract]
Objective To establish a method for the isolation and preparation of arglabin from Artemisia myriantha by high speed counter-current chromatography (HSCCC). Methods The ethanol extract of A. myriantha was separated with silica gel column chromatography, and the obtained Fr. 1 was further separated by HSCCC with a two-phase solvent system composed of n-hexane-ethylacetate-methanol-water (1.2:0.8:1.5:0.5). The lower phase was used as mobile phase, and the upper phase was used as the stationary phase. Main engine speed was 850 r/min, and the detection wavelength was 254 nm at a flow rate of 2.0 mL/min. The obtained fraction was identified by spectral analysis and analyzed by HPLC. Results A total of 260 mg arglabin with the purity of 99.5% was successfully obtained from 500 mg Fr. 1. Conclusion The results indicate that HSCCC is a simple and rapid method for the separation and preparation of arglabin reference substance.
[中圖分類號]
[基金項目]
科技部“十一五”重大新藥創(chuàng)制項目(2010ZX09401-402)