| 一种多巴胺分子印迹的电化学传感器 |
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| 引用本文： | 邢宪荣,廉文静,刘素.一种多巴胺分子印迹的电化学传感器[J].济南大学学报(自然科学版),2012(3):255-259. |
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| 作者姓名： | 邢宪荣 廉文静 刘素 |
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| 作者单位： | 济南大学化学化工学院;济南大学资源与环境学院 |
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| 基金项目： | 国家自然科学基金(31101296);山东省自然基金(ZR2010DQ025);山东省高等学校科技计划(J10LB14);济南大学博士基金(XBS1034) |
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| 摘 要： | 利用分子印迹技术,结合聚苯胺、多壁碳纳米管和金纳米粒子-丝素蛋白复合物构建新型检测多巴胺的分子印迹电化学传感器。分子印迹聚合物以多巴胺为模板,正硅酸乙酯和苯基三乙氧基硅烷为功能单体合成。当pH值为7.0,模板与单体的物质的量比为1∶5时,该传感器的线性范围为5.0×10-8～9×10-6mol/L,检测限(LOD)为1.02×10-8mol/L。重复实验的相对标准偏差为5.4%。
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| 关 键 词： | 电化学传感器 分子印迹聚合物 聚苯胺 多壁碳纳米管 金纳米粒子-丝素蛋白复合物 多巴胺检测 |
A Molecularly Imprinted Electrochemical Sensor of Dopamine |
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| XING Xian-ronga,LIAN Wen-jinga,LIU Su.A Molecularly Imprinted Electrochemical Sensor of Dopamine[J].Journal of Jinan University(Science & Technology),2012(3):255-259. |
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| Authors: | XING Xian-ronga LIAN Wen-jinga LIU Su |
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| Institution: | b(a.School of Chemistry and Chemical Engineering;b.School of Resources and Environment,University of Jinan,Jinan 250022,China) |
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| Abstract: | A novel sensitive molecularly imprinted electrochemical sensor has been developed for selective detection of dopamine by combination of polyaniline,multiwalled carbon nanotube and gold nanoparticle-silk fibroin composite.The molecularly imprinted polymer(MIP) was synthesized using dopamine as the template molecule,tetraethyl orthosilicate and triethoxyphenylsilane as the functional monomers.Under pH=7.0 and the template-monomer ratio of 1∶5,the current response had a linear relationship with the concentration of dopamine in the range of 5.0×10-8 mol/L～9×10-6 mol/L,with a limit of detection 1.02×10-8 mol/L.The relative standard deviation(RSD) of the repeated experiments was 5.4%. |
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| Keywords: | electrochemical sensor molecularly imprinted polymer polyaniline multiwalled carbon nanotube gold nanoparticle-silk fibroin composite dopamine detection |
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