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| 碳纳米管表面绿原酸印迹固相萃取材料的制备及应用 | |
| 引用本文： | 张华斌,张朝晖,聂燕,胡宇芳,邹海英,姚守拙.碳纳米管表面绿原酸印迹固相萃取材料的制备及应用[J].分析化学,2009,37(7). |
| 作者姓名： | 张华斌 张朝晖 聂燕 胡宇芳 邹海英 姚守拙 |
| 作者单位： | 1. 吉首大学化学化工学院,吉首,416000 2. 吉首大学化学化工学院,吉首,416000;湖南大学化学生物传感与计量国家重点实验室,长沙,410082 3. 湖南大学化学生物传感与计量国家重点实验室,长沙,410082 |
| 基金项目： | 湖南省自然科学基金，湖南省教育厅优秀青年基金，湖南大学化学生物传感与计量国家重点实验室开放基金 |
| 摘 要： | 在多壁碳纳米管表面接枝的双键键合,以绿原酸为模板,甲基丙烯酸为功能单体,乙二醇二甲基丙烯酸酯为交联剂,采用沉淀聚合技术,在碳纳米管表面成功制备绿原酸印迹材料.采用红外光谱、扫描电镜和热重分析研究此印迹材料的性能.结果表明,在碳纳米管表面接枝一层稳定、均匀、30～40 nm厚的印迹材料.采用高效液相色谱研究此印迹材料的吸附动力学及吸附容量,实验结果表明,此印迹材料对绿原酸的结合存在两个结合位点,最大吸附容量Qmax分别为21.5和32.7 μmol/g.以此印迹材料作为固相萃取剂,优化萃取条件,成功应用于金银花提取液中绿原酸的富集分离研究,富集因子达25. |
| 关 键 词： | 多壁碳纳米管 分子印迹 绿原酸 分离 |
Preparation and Application of Chlorogenic Acid Imprinted Solid Phase Extraction Materials Based on Multiwalled Carbon Nanotubes |
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| ZHANG Hua-Bin,ZHANG Zhao-Hui,NIE Yan,HU Yu-Fang,ZOU Hai-Ying,YAO Shou-Zhuo.Preparation and Application of Chlorogenic Acid Imprinted Solid Phase Extraction Materials Based on Multiwalled Carbon Nanotubes[J].Chinese Journal of Analytical Chemistry,2009,37(7). | |
| Authors: | ZHANG Hua-Bin ZHANG Zhao-Hui NIE Yan HU Yu-Fang ZOU Hai-Ying YAO Shou-Zhuo |
| Institution: | ZHANG Hua-Bin1,ZHANG Zhao-Hui1,2,NIE Yan1,HU Yu-Fang1,ZOU Hai-Ying1,YAO Shou-Zhuo2 1(College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000)2(State Key Laboratory of Chemo/Biosensing and Chemometrics,Changsha 410082) |
| Abstract: | A novel molecularly imprinted polymers(MIPs)was prepared based on multiwalled carbon nanotubes(MWNTs)by using chlorogenic acid as template,methacrylic acid(MAA)as the functional monomer,and ethylene glycol dimethacrylate(EGDMA)as the cross-linker.Infrared spectroscopy,scanning electron microscopy,and thermogravimetric analysis were employed to characterize the composite structure and morphology,the results showed that a stable imprinted layer was grafted on the MWNTs with the average thickness of 30-40 nm.T... |
| Keywords: | Multiwalled carbon nanotubes molecularly imprinted chlorogenic acid separation |
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