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首页> 外文期刊>International Journal of Electrochemical Science >A Simple, Low-Cost and Efficient β-CD/MWCNTs/CP-based Electrochemical Sensor for the Rapid and Sensitive Detection of Methyl Parathion
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A Simple, Low-Cost and Efficient β-CD/MWCNTs/CP-based Electrochemical Sensor for the Rapid and Sensitive Detection of Methyl Parathion

机译：一种简单，低成本，高效的基于β-CD/ MWCNTs / CP的电化学传感器，用于快速灵敏地检测甲基对硫磷

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Based on the β-cyclodextrin/multi-walled carbon nanotubes/carbon paper (β-CD/MWCNTs/CP)composite, a simple, low-cost and efficient electrochemical sensor is first designed in the work for therapid and sensitive detection of methyl parathion (MP). The characteristic peaks of β-CD andMWCNTs are simultaneously observed in the XRD and FTIR results, and these two materials dispersehomogeneously on the surface of CP electrode. The results of electrochemical measurements suggestthat the obtained β-CD/MWCNTs/CP composite electrode exhibits remarkable synergetic effect,significantly enhancing the efficiency and sensitivity of electrochemical sensor for the selectiveadsorption property of β-CD, high electrical conductivity and large surface area of MWCNTs, as wellas easy operation of CP electrode. Under the optimal conditions, the β-CD/MWCNTs/CP-basedelectrochemical sensor exhibits excellent MP determination performance with a low detection limit of2.4 ng mL -1 (S/N=3) and a wide linear concentration range from 0.01 to 13 μg mL -1 . Given that the CPis not expensive and the construction of CP-based electrochemical sensor can avoid several complexworking procedures, this work has a great significance on promoting the more practicalelectrochemical sensor for the rapid and sensitive detection of MP.
机译：基于β-环糊精/多壁碳纳米管/复写纸（β-CD/ MWCNTs / CP）的复合材料，首先在工作中设计了一种简单，低成本，高效的电化学传感器，用于对甲基对硫磷的快速，灵敏检测（MP）。在XRD和FTIR结果中同时观察到了β-CD和MWCNTs的特征峰，这两种物质在CP电极表面均匀分散。电化学测量结果表明，所制得的β-CD/ MWCNTs / CP复合电极具有明显的协同作用，显着提高了电化学传感器对β-CD的选择性吸附性能，高电导率和大表面积的碳纳米管的灵敏度和灵敏度，以及CP电极的简便操作。在最佳条件下，基于β-CD/ MWCNTs / CP的电化学传感器表现出优异的MP测定性能，检测限低至2.4 ng mL -1（S / N = 3），线性浓度范围从0.01至13微克mL -1。鉴于CP并不昂贵，并且基于CP的电化学传感器的构建可以避免几个复杂的工作程序，因此这项工作对于推广更实用的电化学传感器来快速，灵敏地检测MP具有重大意义。

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