基于分子印迹聚合物的2,4-二氯苯酚测定电化学传感器。

Liu Benzhi, Cang Hui, Jin Jianxiang

School of Environmental Science and Engineering, Yancheng Institute of Technology, 224051 Yancheng, China.

Polymers (Basel). 2016 Aug 18;8(8):309. doi: 10.3390/polym8080309.

A molecularly imprinted polymers based electrochemical sensor was fabricated by electropolymerizing pyrrole on a Fe₃O₄ nanoparticle modified glassy carbon electrode. The sensor showed highly catalytic ability for the oxidation of 2,4-dichlorophenol (2,4-DCP). Square wave voltammetry was used for the determination of 2,4-DCP. The oxidation peak currents were proportional to the concentrations of 2,4-DCP in the range of 0.04 to 2.0 µM, with a detection limit of 0.01 µM. The proposed sensor was successfully applied for the determination of 2,4-DCP in water samples giving satisfactory recoveries.

通过在四氧化三铁纳米粒子修饰的玻碳电极上电聚合吡咯制备了一种基于分子印迹聚合物的电化学传感器。该传感器对2,4-二氯苯酚（2,4-DCP）的氧化表现出高催化能力。采用方波伏安法测定2,4-DCP。氧化峰电流与2,4-DCP浓度在0.04至2.0 μM范围内成正比，检测限为0.01 μM。所提出的传感器成功应用于水样中2,4-DCP的测定，回收率令人满意。