A new graphene nanocomposite modified electrode as efficient voltammetric sensor for determination of eriocitrin
A new graphene nanocomposite modified electrode as efficient voltammetric sensor for determination of eriocitrin
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新型石墨烯纳米复合材料修饰电极作为高效伏安传感器测定圣草次苷
DOI：
10.1016/j.jelechem.2016.11.061
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发表时间：
2017-01-15
影响因子：
4.5
通讯作者：
Ye, Baoxian
中科院分区：
文献类型：
--
作者：
Wang, Lu;Wang, Qinqin;Ye, Baoxian
采用水热法制备了CeO2-聚(二烯丙基二甲基氯化铵)-石墨烯纳米复合材料(CeO2-PDDA-GR)。透射电子显微镜(TEM)图像显示，纳米CeO2颗粒在GR片上的分布更加均匀。基于CeO2-PDDA-GR复合修饰玻碳电极，详细研究了淫羊藿苷的电化学性质，建立了灵敏的测定方法。示差脉冲伏安法表明，氧化峰电流与淫羊藿苷浓度在1.0×10~(-8)m ol×10~(-8)m ol·L~(-1)范围内呈线性关系，检出限为7.0×10~(-10)m ol L~(-1)(S/N=3)。将该方法用于柠檬样品中淫羊藿苷的测定，结果准确。(C)2016爱思唯尔B.V.保留所有权利。
A new grapherie nanocomposite, CeO2-poly(diallyldimethylammonium chloride)-graphene (CeO2-PDDA-GR), was prepared by an easy and low-cost hydrothermal method. The images of transmission electron microscopy (TEM) showed that well-shaped CeO2 nanoparticles distributed more uniformly on the GR sheets. Based on the CeO2-PDDA-GR composites modified glassy carbon electrode, the electrochemical properties of eriocitrin were investigated in detail and a sensitive determination method was established synchronously. Differential pulse voltammetry (DPV) measurement revealed that the oxidation peak current increased linearly with eriocitrin concentrations in range of 1.0 x 10(-8) mol x 10(-8) mol L-1 with detection limit of 7.0 x 10(-10) mol L-1 (S/N = 3). Moreover, the proposed method was used in determination of eriocitrin in lemon sample with accurate results. (C) 2016 Elsevier B.V. All rights reserved.