| 利用差示脉冲伏安法研究水杨酸分子印迹聚合物吸附特性 |
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| 引用本文： | 张会妮,;李琪,;王志华. 利用差示脉冲伏安法研究水杨酸分子印迹聚合物吸附特性[J]. 甘肃科学学报, 2014, 0(4): 81-85 |
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| 作者姓名： | 张会妮, 李琪, 王志华 |
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| 作者单位： | [1]甘肃省分析测试中心,甘肃兰州730000; [2]西北师范大学化学化工学院,甘肃兰州730070 |
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| 基金项目： | 甘肃省省级科技计划项目（1010RJZA197） |
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| 摘 要： | 以水杨酸为模板分子,丙烯酰胺为功能单体,乙二醇二甲基丙烯酸为交联剂合成了水杨酸分子印迹聚合物.在B-R缓冲溶液中,采用差示脉冲伏安法研究了水杨酸分子印迹聚合物吸附性能,平衡结合实验结果表明,水杨酸分子印迹聚合物的吸附量明显大于非印迹聚合物NIP的吸附量.选有与水杨酸分子结构类似的对羟基苯甲酸研究水杨酸分子印迹聚合物对水杨酸的选择性,表明此水杨酸分子印迹聚合物对水杨酸的吸附量总是大于对对羟基苯甲酸的吸附量,水杨酸分子印迹聚合物对水杨酸具有良好的选择性.
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| 关 键 词： | 分子印迹聚合物 水杨酸 吸附性能 差示脉冲伏安法 |
Adsorption of Molecularly Imprinted Polymers of Salicylic Acid by Differential Pulse Voltammetry |
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| Affiliation: | ZHANG Hui-ni ,LI Qi ,WANG Zhi-hua ( 1. Analysis and Testing Center of Gansu Province, Lanzhou 730000 ,China ; 2. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China) |
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| Abstract: | Salicylic acid （SA） molecularly imprinted polymers were synthesized with SA as the template, acrylamide as the functional monomer and ethylene glycol dimethacrylate as the cross-linker. In the buffer solution the adsorption of the polymers was tested by the differential pulse voltammetry. The equilibrium binding experiment results show that the adsorption capacity of SA molecularly imprinted polymers is much higher than that of non-molecularly-imprinted polymers. The selectivity of SA molecularly imprinted polymers was evaluated on the basis of dimethacrylate which has some similar molecular structures. The test confirms that the adsorption of SA molecularly imprinted polymers to SA is always higher than that to 4-hydroxybenzoic acid,and salicylic acid molecularly imprinted polymers have a good selectivity for SA. |
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| Keywords: | Molecularly imprinted polymers Salicylic acid Adsorption Differential pulse voltammetry |
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