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首页> 外文期刊>Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry >Determination of mercury using a glassy carbon electrode modified with nano TiO2 and multi-walled carbon nanotubes composites dispersed in a novel cationic surfactant
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Determination of mercury using a glassy carbon electrode modified with nano TiO2 and multi-walled carbon nanotubes composites dispersed in a novel cationic surfactant

机译：使用分散在新型阳离子表面活性剂中的纳米TiO2和多壁碳纳米管复合材料修饰的玻碳电极测定汞

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摘要

A glassy carbon electrode modified with nano TiO2 and multi-walled carbon nanotubes composites dispersed in a novel cationic surfactant was described for the determination of trace mercury(II) by linear anodic stripping voltammetry. Under optimal experimental conditions, the linear sweep anodic stripping peak current was linear with the concentration of Hg(II) in the range of 0.1-100 mu molL(-1) with a detection limit of 0.025 mu mol L-1. The sensitivity was found to be 3.7014 A/mol L-1. The proposed electrode also showed a high selectivity for mercury in the presence of common potential interfering metal ions. Moreover, the proposed electrode revealed good reproducibility and stability. The proposed method was successfully applied for the determination of Hg(II) in river water and industrial wastewater samples. (C) 2015 Published by Elsevier B.V.
机译：介绍了一种用纳米二氧化钛和多壁碳纳米管复合材料改性的玻碳电极分散在新型阳离子表面活性剂中的方法，用于通过线性阳极溶出伏安法测定痕量汞（II）。在最佳实验条件下，线性扫描阳极溶出峰电流与Hg（II）浓度在0.1-100μmol·L（-1）范围内呈线性关系，检出限为0.025μmol·L-1。发现灵敏度为3.7014A / mol L-1。所提出的电极在存在共同的潜在干扰金属离子的情况下还显示出对汞的高选择性。而且，提出的电极显示出良好的再现性和稳定性。该方法成功地用于测定河水和工业废水中的汞（II）。 （C）2015由Elsevier B.V.发布

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