| EPA和DHA在超临界流体色谱柱中的传质动力学 |
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| 引用本文： | 任其龙,苏宝根,熊任天,吴平东. EPA和DHA在超临界流体色谱柱中的传质动力学[J]. 化工学报, 2001, 52(9): 788-792 |
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| 作者姓名： | 任其龙 苏宝根 熊任天 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 ; |
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| 基金项目： | 国家自然科学基金资助项目 (No .2 9776 0 40 )~~ |
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| 摘 要： | 用超临界流体色谱 (SFC)法研究了EPA和DHA在C18上的吸附和传质性能 .建立了色谱动力学模型并获得了模型参数 ,较好地拟合了实验流出曲线 .结果表明吸附平衡、轴向弥散、流体相传质和颗粒内有效扩散都是影响SFC分离EPA和DHA的重要因素
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| 关 键 词： | 二十碳五烯酸 二十二碳六烯酸 超临界流体色谱 传质动力学 分离 鱼油 EPA DHA |
| 文章编号： | 0438-1157(2001)09-0788-05 |
| 修稿时间： | 2000-09-18 |
MASS TRANSFER KINETICS OF EPA AND DHA IN SUPERCRITICAL FLUID CHROMATOGRAPHY |
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| REN Qilong,SU Baogen,XIONG Rentian,WU Pingdong. MASS TRANSFER KINETICS OF EPA AND DHA IN SUPERCRITICAL FLUID CHROMATOGRAPHY[J]. Journal of Chemical Industry and Engineering(China), 2001, 52(9): 788-792 |
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| Authors: | REN Qilong SU Baogen XIONG Rentian WU Pingdong |
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| Abstract: | Supercritical fluid chromatography (SFC) was used to study the adsorption equilibrium and mass transfer properties for eicosapentaenoic acid(EPA) and docosahexaenoic acid(DHA) on C 18 by means of impulse response technique. In order to estimate the adsorption constant and rate constants, a kinetic model was established. Chromatographic curves were calculated by using the parameters obtained from experiments, and the agreement between the experimental and calculated curves was good. It was indicated that adsorption equilibrium, axial dispersion, mass transfer and effective diffusion are important factors that influence the separation of EPA and DHA by SFC. |
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| Keywords: | eicosapentaenoic acid (EPA) docosahexaenoic acid (DHA) supercritical fluid chromatography mass transfer kinetics |
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