Wang Yonglan, Jin Jun, Yuan Caixia, Zhang Fan, Ma Linlin, Qin Dongdong, Shan Duoliang, Lu Xiaoquan
Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, 730070, P. R. China.
Analyst. 2015 Jan 21;140(2):560-6. doi: 10.1039/c4an00981a.
A simple and mild strategy was proposed to develop a novel electrochemical sensor based on zirconia/ordered macroporous polyaniline (ZrO2/OMP) and further used for the detection of methyl parathion (MP), one of the organophosphate pesticides (OPPs). Due to the strong affinity of phosphate groups with ZrO2 and the advantages of OMP such as high catalytic activity and good conductivity, the developed sensor showed a limit of detection as low as 2.28 × 10(-10) mol L(-1) (S/N = 3) by square-wave voltammograms, and good selectivity, acceptable reproducibility and stability. Most importantly, this novel sensor was successfully applied to detect MP in real samples of apple and cabbage. It is expected that this method has potential applications in electrochemical sensing platforms with simple, sensitive, selective and fast analysis.
提出了一种简单温和的策略来开发一种基于氧化锆/有序大孔聚苯胺（ZrO₂/OMP）的新型电化学传感器，并进一步用于检测有机磷农药（OPP）之一的甲基对硫磷（MP）。由于磷酸基团与ZrO₂具有很强的亲和力以及OMP具有高催化活性和良好导电性等优点，所开发的传感器通过方波伏安图显示出低至2.28×10⁻¹⁰ mol L⁻¹（S/N = 3）的检测限，以及良好的选择性、可接受的重现性和稳定性。最重要的是，这种新型传感器成功应用于苹果和卷心菜实际样品中MP的检测。预计该方法在具有简单、灵敏、选择性和快速分析的电化学传感平台中具有潜在应用。
