| Adsorption Isotherms of Quercetin and Catechin Compounds on Quercetin-MIP |
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| 作者姓名： | JIN Yin-zhe ROW Kyung Ho |
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| 作者单位： | Center for |
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| 基金项目： | Supported by the Center for Advanced Bioseparation Technology and the Postdoctoral Program of Inha University. |
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| 摘 要： | A molecular imprinted polymer(MIP)was prepared with quercetin as the template and methacrylic acid(MAA)as the functional monomer.Acetonitrile and methanol were used as the porogen with ethylene glycol dimethacrylate(EGDMA)as the crosslinker and 2,2'-azobis(isobutyronitrile)(AIBN)as the initiator.The experimental parameters of the equilibrium isotherms were estimated via linear and nonlinear regression analyses.The linear equation as the functions of the adsorption concentration of the single compound in its solution and the competitive adsorption of the single compound in its mixed compounds solution was then expressed,and the adsorption equilibrium data were correlated to Langmuir and Freundlich isotherm models.The mixture compounds show competitive adsorption on the specific binding sites of quercetin-MIP.Furthermore,the competitive Langmuir isotherms were applied to the mixture compounds.The adsorption concentrations of quercetin,( )catechin( C),and(-)epicatechin(EC)on the quercetin molecular imprinted polymer were compared.The quercetin-imprinted polymer shows extraordinarily higher adsorption ability for quercetin than for the two catechin compounds that were also assessed.
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| 关 键 词： | 吸附等温线 分子印记聚合物 栎精 儿茶酚 表儿茶酸 |
| 收稿时间： | 20 October 2006 |
Adsorption Isotherms of Quercetin and Catechin Compounds on Quercetin-MIP |
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| JIN Yin-zhe ROW Kyung Ho.Adsorption Isotherms of Quercetin and Catechin Compounds on Quercetin-MIP[J].Chemical Research in Chinese University,2007,23(4):412-416. |
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| Authors: | JIN Yin-zhe ROW Kyung Ho |
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| Institution: | Center for Advanced Bioseparation Technology and Department of Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402–751, Korea |
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| Abstract: | A molecular imprinted polymer(MIP)was prepared with quercetin as the template and methacrylic acid(MAA)as the functional monomer.Acetonitrile and methanol were used as the porogen with ethylene glycol dimethacrylate(EGDMA)as the crosslinker and 2,2'-azobis(isobutyronitrile)(AIBN)as the initiator.The experimental parameters of the equilibrium isotherms were estimated via linear and nonlinear regression analyses.The linear equation as the functions of the adsorption concentration of the single compound in its solution and the competitive adsorption of the single compound in its mixed compounds solution was then expressed,and the adsorption equilibrium data were correlated to Langmuir and Freundlich isotherm models.The mixture compounds show competitive adsorption on the specific binding sites of quercetin-MIP.Furthermore,the competitive Langmuir isotherms were applied to the mixture compounds.The adsorption concentrations of quercetin,( )catechin( C),and(-)epicatechin(EC)on the quercetin molecular imprinted polymer were compared.The quercetin-imprinted polymer shows extraordinarily higher adsorption ability for quercetin than for the two catechin compounds that were also assessed. |
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| Keywords: | Adsorption isotherm Molecular imprinted polymer Quercetin ( )Catechin (-)Epicatechin |
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