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首页> 外文期刊>International Journal of Electrochemical Science >Facile and Sensitive Determination of bisphenol A Based on MWCNTs-TiN Nanocomposites Modified Glassy Carbon Electrode
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Facile and Sensitive Determination of bisphenol A Based on MWCNTs-TiN Nanocomposites Modified Glassy Carbon Electrode

机译：MWCNTs-TiN纳米复合修饰玻碳电极简便，灵敏地测定双酚A

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摘要

Herein, a novel and convenient electrochemical sensor based on a glassy carbon electrode modifiedwith multi-walled carbon nanotubes-titanium nitride (MWCNTs-TiN) film for sensitive and efficientdetection of bisphenol A (BPA) was developed. Several important parameters controlling theperformance of the sensor, such as scan rate, the volume of MWCNTs-TiN dispersion and the pHvalue of buffer solution, were be investigated and optimized by cyclic voltammetry (CV) anddifferential pulse voltammetry (DPV). It was notable that the oxidation peak current of BPA hadenhanced greatly and the oxidation overpotential had decreased significantly. Under the optimizedconditions, the oxidation peak current was proportional to BPA concentration in the range of 0.1- 50M, and the detection limit was 0.05M. Meanwhile, the modified electrode was also exhibitedgood reproducibility and stability, and was employed to in-situ determinate BPA in water samples withsatisfying results.
机译：在本文中，基于多壁碳纳米管-氮化钛（MWCNTs-TiN）膜修饰的玻碳电极，开发了一种新颖，便捷的电化学传感器，用于灵敏，高效地检测双酚A（BPA）。通过循环伏安法（CV）和微分脉冲伏安法（DPV）研究并优化了控制传感器性能的几个重要参数，例如扫描速率，MWCNTs-TiN分散液的体积和缓冲溶液的pH值。值得注意的是，BPA的氧化峰值电流大大提高，并且氧化超电势已大大降低。在最佳条件下，氧化峰电流与BPA浓度成正比，范围为0.1-50M，检出限为0.05M。同时，该修饰电极还具有良好的重现性和稳定性，可用于原位测定水中的双酚A，效果令人满意。

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