Al-Doped Mesoporous Cellular Foam Modified Electrode as Sensor for the Detection of Parathion Pesticide

文献类型： 外文期刊

第一作者： Huang, Xinlong

作者： Huang, Xinlong;Yan, Feiyan;Xie, Liping;Ya, Yu;Zheng, Lufei;Wang, Jing

作者机构：

关键词： Al-doped mesoporous cellular foam; Modified electrode; Ethyl parathion; Electroanalysis

期刊名称：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE （ 影响因子：1.765； 五年影响因子：1.685 ）

ISSN： 1452-3981

年卷期： 2019 年 14 卷 2 期

页码：

收录情况： SCI

摘要： Al-doped mesoporous cellular foam (Al-MCF) materials have been synthesized using "pH-adjusting" method and characterized by transmission electron microscopy (TEM), scanning electron microscopy coupled with energy dispersive X-ray spectrometry (SEM-EDS), X-ray diffraction (XRD), and nitrogen physisorption. The prepared Al-MCF was used to construct a carbon paste electrode (Al-MCF/CPE) for the electroanalysis of ethyl parathion (EP). Electrochemical behaviors of EP at the bare carbon paste electrode (CPE) and Al-MCF/CPE were studied. The results showed that the voltammetric response of EP at the Al-MCF/CPE sharply increased due to the high adsorption capacity, large surface area, and excellent electron transport properties of the Al-MCF. Some parameters, such as the content of Al-MCF, accumulation time, accumulation potential, and pH were optimized. Under optimal conditions, the oxidation peak current was proportional to EP concentration in the ranges of 0.010 to 0.10 mg/L and 0.10 to 1.0 mg/L, respectively, with a detection limit of 0.0050 mg/L (S/N = 3). The proposed method was applied for the determination of EP in vegetable samples with the recoveries of 94.4 - 110 %.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序