| 离子交换树脂吸附胞嘧啶核苷三磷酸的动力学和热力学研究 |
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| 引用本文： | 阮文辉,吕浩,赵谷林,应汉杰.离子交换树脂吸附胞嘧啶核苷三磷酸的动力学和热力学研究[J].离子交换与吸附,2009,25(5). |
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| 作者姓名： | 阮文辉 吕浩 赵谷林 应汉杰 |
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| 作者单位： | 南京工业大学制药与生命科学学院,材料化学工程国家重点实验室,南京,210009 |
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| 基金项目： | 教育部跨世纪优秀人才培养基金;国家"863"计划，国家"973"计划 |
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| 摘 要： | 根据CTP在离子交换树脂上的吸附容量和分离因数的大小,确定Duolite A-30树脂适合CTP与CDP及CMP之间的分离.CTP在Duolite A-30树脂上的吸附动力学和热力学研究表明,在283.15～303.15K之间,CTP的质量浓度在7.5g/L以上时,Duolite A-30树脂对CTP的吸附主要受颗粒扩散的控制,其有效扩散系数为D=3.47×10-7cm2/s,溶液的质量浓度≤1.0g/L时,CTP与Duolitc A-30树脂之间的交换速率主要受液膜控制,其液膜扩散系数为Kf=4.112×10-4/s.热力学参数Eα=9.008kJ/mol,△H=5.17kJ/mol·K,△S283.15K=80.28J/mol·K.
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| 关 键 词： | 吸附动力学 吸附热力学 离子交换树脂 胞嘧啶核苷三磷酸 |
THE STUDY OF ADSORPTION KINETIC AND THERMODYNAMIC OF CTP ON ION EXCHANGE RESIN |
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| RUAN Wenhui,LV Hao,ZHAO Gulin,YING Hanjie.THE STUDY OF ADSORPTION KINETIC AND THERMODYNAMIC OF CTP ON ION EXCHANGE RESIN[J].Ion Exchange and Adsorption,2009,25(5). |
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| Authors: | RUAN Wenhui LV Hao ZHAO Gulin YING Hanjie |
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| Institution: | RUAN Wenhui LV Hao ZHAO Gulin YING Hanjie State Key Laboratory of Materials-Oriented Chemical Engineering,College of Life Science and Pharmaceutical Engineering Nanjing University of Technology,Nanjing 210009,China |
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| Abstract: | Duolite A-30 resin is adapted to separate CTP from the mixture of CTP, CDP and CMP basing on the adsorption capacity and selectivity on the different resins. Equilibrium data for the adsorption of CTP from aqueous solutions with Duolite A-30 resin had been researched, which is correlated with a langmuir-type of isotherm equation. The kinetics and thermodynamics of ion exchange between CTP and OH ions with Duolite A-30 resin were studied. Meanwhile, the corresponding determining-rate-steps are ascertained an... |
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| Keywords: | Adsorption kinetics Adsorption thermodynamics Ion exchange Resin CTP |
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