Facile electrochemical determination of tetrabromobisphenol A based on modified glassy carbon electrode
Facile electrochemical determination of tetrabromobisphenol A based on modified glassy carbon electrode
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基于修饰玻碳电极的简易电化学测定四溴双酚A
DOI：
10.1016/j.talanta.2016.01.033
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发表时间：
2016-05-01
期刊：
影响因子：
6.1
通讯作者：
Lu, Qing
中科院分区：
文献类型：
--
作者：
Zhao, Qiang;Zhang, Ke;Lu, Qing
本研究以1，3，6，8-芘四磺酸四钠盐为原料，采用简单的方法制备了表面功能化的氮掺杂石墨烯。通过紫外-可见吸收光谱、X射线光电子能谱和电化学实验对材料的性质进行了表征。然后将功能化的氮掺杂石墨烯和十六烷基三甲基溴化铵修饰在玻碳电极上，用于四溴双酚A（TBBPA）的测定。在修饰电极上，四溴双酚A的氧化电流响应增强，并探讨了其机理。通过对pH值、富集电位和时间等参数的优化，TBBPA的浓度在0.01-1 μ M范围内与氧化电流呈良好的线性关系，检出限为9 nM。该修饰电极用于水样中TBBPA的检测，操作简单，成本低，效率高。(C)© 2016 Elsevier B. V.版权所有。
In this study, surface-functionalized nitrogen-doped graphene was prepared with 1, 3, 6, 8-pyrenetetrasulfonic acid tetrasodium salt in a simple way. The characteristics of the material were demonstrated by UV-vis absorption spectra, X-ray photoelectron spectroscopy, and electrochemical experiments. Then, the glassy carbon electrode was modified by the functionalized nitrogen-doped graphene and hexadecyltrimethylammonium bromide for tetrabromobisphenol A (TBBPA) determination. The oxidation current response of TBBPA was enhanced at the modified electrode and the mechanism was investigated. Upon the optimization of assay parameters, including pH value, accumulation potential and time, the oxidation current was linearly related to the concentration of TBBPA in the range of 0.01-1 mu M with a detection limit of 9 nM. Moreover, the modified electrode was applied to detect TBBPA in water samples with simple, low cost, and high efficiency. (C) 2016 Elsevier B.V. All rights reserved.