| EPA-乙酯和DHA-乙酯在超临界二氧化碳中色谱容量因子与溶解度的关系 |
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| 引用本文： | 苏云,任其龙,熊任天,严全鸿,吴平东.EPA-乙酯和DHA-乙酯在超临界二氧化碳中色谱容量因子与溶解度的关系[J].高校化学工程学报,2002,16(3):242-246. |
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| 作者姓名： | 苏云 任其龙 熊任天 严全鸿 吴平东 |
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| 作者单位： | 浙江大学二次资源化工国家专业实验室,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金资助项目(29776040) |
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| 摘 要： | 以二氧化碳为流动相，ODS柱为固定相，测定了二十碳五烯酸乙酯（EPA－EE）和二十二碳六烯酸乙酯（DHA－EE）的超临界流体色谱容量因子。从宏观热力学出发，研究了溶质的超临界流体色谱容量因子及其在超临界二氧化碳中溶解度的关系，并用实验数据对该热力学关系作了验证。
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| 关 键 词： | 超临界二氧化碳 溶解度 超临界流体色谱 容量因子 二十碳五烯酸乙酯 二十二碳六烯酸乙酯 分离 热力学 |
| 文章编号： | 1003-9015(2002)03-0242-05 |
| 修稿时间： | 2001年4月16日 |
Relationship between Solubilities of EPA Ester and DHA Ester in Supercritical Carbon Dioxide and their Capacity Factors in SFC |
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| SU Yun,REN Qi-long,XIONG Ren-tian,YAN Quan-hong,WU Ping-dong.Relationship between Solubilities of EPA Ester and DHA Ester in Supercritical Carbon Dioxide and their Capacity Factors in SFC[J].Journal of Chemical Engineering of Chinese Universities,2002,16(3):242-246. |
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| Authors: | SU Yun REN Qi-long XIONG Ren-tian YAN Quan-hong WU Ping-dong |
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| Abstract: | Capacity factors of Eicosapentaenoic Acid Ethyl Ester (EPA-EE) and Docosahexanoic Acid Ethyl Ester (DHA-EE) on C18 were determined by supercritical carbon dioxide chromatography at 8~21MPa and 313.15, 323.15 and 333.15K. Relationship between solubilities of solutes in supercritical carbon dioxide and their capacity factors in supercritical fluid chromatography was deduced on the basis of thermodynamics. It was proved that the relationship between the pressure and the logarithm of the product of solubilities and capacity factors is linear for EPA-EE and DHA-EE under the experimental conditions. |
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| Keywords: | solubility supercritical fluid chromatography capacity factor EPA ethyl ester DHA ethyl ester |
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