Institute of Environmental Science, Shanxi University, Taiyuan 030006, China; Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China.
Institute of Environmental Science, Shanxi University, Taiyuan 030006, China.
Talanta. 2017 Mar 1;164:556-562. doi: 10.1016/j.talanta.2016.12.027. Epub 2016 Dec 12.
In this paper, poly (diallyldimethylammonium chloride) functionalized graphene/palladium nanoparticles (PDDA-Gr/PdNPs) have been successfully synthesized through a simple one-pot method with the use of PDDA as stabilizing agents. The electrochemical response of triclosan on the PDDA-Gr/PdNPs modified glassy carbon electrode (GCE) is greatly enhanced comparing to the PDDA-Gr/GCE or the bare GCE. It is suggested that the nanocomposite exhibited good electron transfer ability and catalytic activity. Under the optimal conditions, the oxidation current increased linearly with the concentration of triclosan in the range of 9.0nM to 20.0μM. The detection limit was estimated to be 3.5nM (S/N=3). Besides, the electrochemical sensor presented superior reproducibility, excellent anti-interference performance and long-term stability. What is more, the method is promising for the determination of trace amounts of triclosan in water samples.
本文通过简单的一锅法成功合成了聚二烯丙基二甲基氯化铵功能化石墨烯/钯纳米粒子（PDDA-Gr/PdNPs），使用 PDDA 作为稳定剂。与 PDDA-Gr/GCE 或裸 GCE 相比，三氯生在 PDDA-Gr/PdNPs 修饰的玻碳电极（GCE）上的电化学响应大大增强。这表明纳米复合材料具有良好的电子转移能力和催化活性。在最佳条件下，氧化电流在 9.0nM 至 20.0μM 的三氯生浓度范围内呈线性增加。检测限估计为 3.5nM（S/N=3）。此外，电化学传感器表现出优异的重现性、出色的抗干扰性能和长期稳定性。更重要的是，该方法有望用于水样中痕量三氯生的测定。
