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| 农药三唑酮分子印迹聚合物的识别特性研究 | |
| 引用本文： | 吴文镶,李莉,杨更亮,李志伟,张国庆.农药三唑酮分子印迹聚合物的识别特性研究[J].河北大学学报(自然科学版),2006,26(4):396-400. |
| 作者姓名： | 吴文镶 李莉 杨更亮 李志伟 张国庆 |
| 作者单位： | 1. 廊坊师范学院,继续教育中心,河北,廊坊,065000 2. 河北理工大学,轻工学院,河北,唐山,063020 3. 中国科学院化学研究所,分子科学研究中心,北京,100080;河北大学,化学与环境科学学院,河北,保定,071002 4. 河北大学,化学与环境科学学院,河北,保定,071002 |
| 基金项目： | 廊坊师范学院自然科学资助项目(LSZYZ200401) |
| 摘 要： | 采用分子印迹技术合成了对农药三唑酮有高选择性的印迹聚合物,通过Scatchard分析研究了印迹聚合物的结构特性.结果表明,以甲基丙烯酸为功能单体的印迹聚合物,通过氢键作用可以形成两类结合位点.用多点结合模型计算两类结合位点的离解常数分别为K1=7.89×10-4mol/L,K2=3.53×10-3mol/L.底物的选择性结合实验表明,该聚合物对三唑酮呈现高度的选择性及识别能力.为在生物样品中选择富集三唑酮提供了可能性. |
| 关 键 词： | 分子印迹技术 印迹聚合物 三唑酮 底物选择性 |
| 文章编号： | 1000-1565(2006)04-0396-05 |
| 修稿时间： | 2005年6月25日 |
Characteristics of Molecular Recognition of Triadimefon Imprinting Polymer |
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| WU Wen-xiang,LI li,YANG Geng-liang,LI Zhi-wei,ZHANG Guo-qing.Characteristics of Molecular Recognition of Triadimefon Imprinting Polymer[J].Journal of Hebei University (Natural Science Edition),2006,26(4):396-400. | |
| Authors: | WU Wen-xiang LI li YANG Geng-liang LI Zhi-wei ZHANG Guo-qing |
| Abstract: | A molecular imprinting polymer with high selectivity for triadimefon was prepared by a molecular imprinting technique.The selective binding characteristics of the imprinting polymer was evaluated by Scatchard analysis.The multiple-sites binding model was used to calculate the maximum number of binding sites and the dissociation constant.The results showed that the imprinting polymer using methacrylic acid(MAA) as functional monomer could form two kinds of binding sites.The dissociation constants were estimated to be K-1=(7.89×10~(-4)) mol/L and K-2=3.53×10~(-3) mol/L.The selective binding experiment for substrates indicated that the polymer gave much higher affinity and selectivity for triadimefon than for triadimenol and imidacloprid.It's possible to be a good way in selective enrichment and determination of trace Triadimefon in complex samples. |
| Keywords: | molecular imprinting technique imprinting polymer triadimefon substrate selectivity |
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