| 离子印迹荧光传感器选择性检测镉离子 |
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| 引用本文： | 牟怀燕,高云玲,付坤,姚克俭.离子印迹荧光传感器选择性检测镉离子[J].分析测试学报,2011,30(7):795-798. |
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| 作者姓名： | 牟怀燕 高云玲 付坤 姚克俭 |
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| 作者单位： | 浙江工业大学化学工程与材料学院绿色合成技术国家重点实验室培育基地,浙江杭州,310014 |
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| 基金项目： | 国家自然科学基金资助项目（20807037） |
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| 摘 要： | 该文运用离子印迹技术,结合表面修饰方法以2-萘基丙烯酸酯为荧光配体,聚偏氟乙烯(PVDF)膜为支撑介质,在二甲基亚砜中于65℃下热引发聚合得到镉离子荧光印迹传感器.该荧光印迹传感器在中性条件下对镉离子表现出良好的选择性和抗干扰能力,检出限为5.5×10-7mol/L,与ICP - MS法无显著性差异.循环使用10次的相...
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| 关 键 词： | 金属离子印迹 表面印迹技术 荧光传感器 镉离子 2-萘基丙烯酸酯 |
Preparation of an Ion Imprinted Fluorescent Sensor for Selectivity Determination of Cadmium in Aqueous Media |
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| MUHuai-yan,GAOYun-ling,FUKun,YAOKe-jian.Preparation of an Ion Imprinted Fluorescent Sensor for Selectivity Determination of Cadmium in Aqueous Media[J].Journal of Instrumental Analysis,2011,30(7):795-798. |
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| Authors: | MUHuai-yan GAOYun-ling FUKun YAOKe-jian |
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| Affiliation: | MU Huai-yan,GAO Yun-ling,FU Kun,YAO Ke-jian(State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology,College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | An optical approach was developed for the detection of Cd2+ based on ion imprinted polymer membrances as sensing receptors.The polymer was synthesized with cadmium ions as a template and 2-naphthyl acrylate as both the fluorescence tag and a complex-forming agent.The free radical polymerization was performed within PVDF films and was initiated by 2,2′-azobisisobutyronitrile at 65 ℃ in dimethyl sulfoxide.The polymer showed a high selectivity for cadmium ions.The calibration curve was linear over the Cd2+ concentration range of 1-9 μmol/L with a detection limit of 5.5×10-7 mol/L.Compared with that by the ICP-MS method,the results by this method had no obvisous difference.The RSDs(n=10) of the polymer for Cd2+ was 2.3%,and the recoveries for Cd2+ in spiked river water were in the range of 97%-100%. |
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| Keywords: | metal ion imprinted polymer surface molecular imprinted technique fluorescence sensor cadmium ion 2-naphthyl acrylate |
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