化工学报 ›› 2003, Vol. 54 ›› Issue (11): 1558-1562.

• 分离工程 • 上一篇    下一篇

超临界流体色谱法制备EPA-EE和DHA-EE

王宪达; 黄梅; 杨亦文; 任其龙   

  1. 浙江大学二次资源化工国家专业实验室,浙江 杭州 310027
  • 出版日期:2003-11-25 发布日期:2003-11-25

SEPARATION OF EPA-EE AND DHA-EE WITH SUPERCRITICAL FLUID CHROMATOGRAPHY

WANG Xianda;HUANG Mei;YANG Yiwen;REN Qilong   

  • Online:2003-11-25 Published:2003-11-25

摘要: 以二氧化碳作流动相,C18柱为固定相,用超临界流体色谱法制备二十碳五烯酸乙酯(EPA-EE)和二十二碳六烯酸乙酯(DHA-EE).考察了流速、温度、压力、上载量以及进样浓度对制备分离的影响.结果表明,在实验范围内,流速对分离效果影响不大.对于5-C18,250mm×4.6mm色谱柱,其最适制备条件是柱前压12MPa,温度55℃,通常流速下的压降约为1MPa,鱼油的最大上载量大于20μl.而对于8-C18,250mm×10mm色谱柱,其相应的最适制备条件是柱前压11MPa,温度55℃,通常流速下的压降约为0.5MPa,鱼油的最大上载量约为100μl.实验表明,鱼油无需溶解于其他溶剂而可直接进样.

关键词:

制备超临界流体色谱法, 二十碳五烯酸乙酯(EPA-EE), 二十二碳六烯酸乙酯(DHA-EE), 分离

Abstract: The separation of Eicosapentaenoic Acid(EPA)and Docosahexanoic Acid(DHA)-ethyl esters by supercritical fluid chromatography (SFC) with carbon dioxide as mobile phase using C18 columns was studied. The effects of flow rate, operation temperature and pressure, sample size and concentration on separation were investigated. It is indicated that the effect of flow rate on resolution is not obvious. As for 5-C18,250mm×4.6mm column, the optimum operating condition is 12MPa, 55℃, pressure drop 1MPa; as for 8-C18,250mm×10mm column, the optimum operating condition is 12MPa, 55℃, pressure drop 0.5MPa. Fish oil can been injected directly without dissolving in other solvents.

Key words:

制备超临界流体色谱法, 二十碳五烯酸乙酯(EPA-EE), 二十二碳六烯酸乙酯(DHA-EE), 分离