| 电还原氧化石墨烯-金纳米棒修饰电极对酒石黄的测定 |
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| 引用本文： | 邓克勤,令玉林,邱喜阳,周建红.电还原氧化石墨烯-金纳米棒修饰电极对酒石黄的测定[J].分析科学学报,2017,33(3). |
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| 作者姓名： | 邓克勤 令玉林 邱喜阳 周建红 |
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| 作者单位： | 理论有机化学与功能分子教育部重点实验室,湖南科技大学化学化工学院,湖南湘潭411201 |
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| 基金项目： | 国家自然科学基金，湖南省教育厅项目，教育部重点实验室开放课题 |
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| 摘 要： | 本文制备了氧化石墨烯-金纳米棒复合物(GO-GNRs).利用滴涂法制备了修饰电极(GO-GNRs/GCE),通过循环伏安法,还原了GO-GNRs复合物中的GO,制得电化学还原的石墨烯-金纳米棒修饰电极(ERGO-GNRs/GCE).研究了酒石黄在不同电极上的电流响应,结果表明,ERGO-GNRs/GCE对酒石黄的氧化有很好的电催化作用,其浓度在0.05～6.0μmol/L范围内与氧化峰电流呈良好的线性关系,检出限为15 nmol/L.利用ERGO-GNRs/GCE可完成样品中酒石黄含量的测定.
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| 关 键 词： | 金纳米棒 氧化石墨烯 酒石黄 电化学还原 |
The Electrochemically Reduced Graphene Oxide and Gold Nanorods Modified Electrode for Determination of Tartrazine |
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| DENG Ke-qin,LING Yu-ling,QIU Xi-yang,ZHOU Jian-hong.The Electrochemically Reduced Graphene Oxide and Gold Nanorods Modified Electrode for Determination of Tartrazine[J].Journal of Analytical Science,2017,33(3). |
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| Authors: | DENG Ke-qin LING Yu-ling QIU Xi-yang ZHOU Jian-hong |
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| Abstract: | The nanocomposite(GO-GNRs) of graphene oxide(GO) and gold nanorods(GNRs) was prepared.The GO-GNRs modified glassy carbon electrode(GCE) was constructed by casting GO-GNRs solution on the surface of GCE.Electrochemical reduced graphene oxide(ERGO) and GNRs modified glass electrode(ERGO-GNRs/GCE) was prepared by the reduction of GO in the composite of GO-GNRs by cyclic voltammetry.The electrochemistry behavior of tartrazine(TZ) on different electrodes was studied.It showed that ERGO-GNRs/GCE exhibited very high electrocatalytic activity toward the oxidation of TZ.The oxidation peak currents showed good linear relationship with TZ concentration within the range of 0.05-6.0 μmol/L.The detection limit was 15nmol/L.It can be applied to the detection of TZ in samples. |
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| Keywords: | Gold nanorods Graphene oxide Tartrazine Electrochemical reduction |
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