Anti-Agglomeration Behavior and Sensing Assay of Chlorsulfuron Based on Acetamiprid-Gold Nanoparticles

文献类型： 外文期刊

第一作者： Liu, Guangyang

作者： Liu, Guangyang;Zhang, Ruonan;Li, Lingyun;Huang, Xiaodong;Xu, Donghui;Li, Tengfei;Lu, Meng;Wang, Jing

作者机构：

关键词： colorimetric sensing; gold nanoparticle; anti-agglomeration behavior; chlorsulfuron; acetamiprid; agricultural irrigation water

期刊名称：NANOMATERIALS （ 影响因子：5.076； 五年影响因子：5.346 ）

ISSN： 2079-4991

年卷期： 2018 年 8 卷 7 期

页码：

收录情况： SCI

摘要： Monitoring of low levels of chlorsulfuron in environmental water samples is important. Although several detection methods have been developed, they all have some drawbacks, such as being time-consuming, requiring expensive instruments and experienced operators, and consuming large volumes of organic solvents. There is an urgent need for a simple, rapid, and inexpensive detection method for chlorsulfuron. Herein, such a method was developed using anti-aggregation of gold nanoparticles (AuNPs) in the presence of acetamiprid in agricultural irrigation water samples. Aggregation of the AuNPs was induced by acetamiprid, and this produced a distinct color change from Bordeaux red to blue. However, the strong hydrogen bonding interaction between chlorsulfuron and acetamiprid could inhibit AuNP aggregation. The effect of chlorsulfuron on the anti-agglomeration behavior of AuNPs was monitored by ultraviolet-visiblespectroscopy (UV-Vis) and the naked eye over a concentration range 0.1-100 mg/L. The detection limit for chlorsulfuron was 0.025 mg/L (signal-to-noise ratio of three). This colorimetric method was successfully applied to the determination of chlorsulfuron in spiked tap water and agricultural irrigation water with satisfactory recoveries (76.3%-94.2%).

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