Magnetic dispersive solid-phase extraction based on a novel adsorbent for the detection of triazole pesticide residues in honey by HPLC-MS/MS
文献类型： 外文期刊
作者： Miao, Qiongchen 1 ; Wang, Jianmei 2 ; Nie, Jing 1 ; Wu, Huizhen 1 ; Liu, Yanping 1 ; Li, Zuguang 1 ; Qian, Mingrong 2 ;
作者机构： 1.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, MOA Key Lab Pesticide Residue Detect, Hangzhou 310021, Zhejiang, Peoples R China
期刊名称：ANALYTICAL METHODS （ 影响因子：2.896； 五年影响因子：2.716 ）
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收录情况： SCI
摘要： A novel Fe3O4@MDN magnetic nanomaterial was successfully developed as a magnetic dispersive solid-phase extraction adsorbent for the determination of triazole pesticide residuals in honey samples by high performance liquid chromatography coupled with triple quadrupole mass spectrometry (HPLC-MS/MS). The macromolecular structure named MDN was coated on the surface of a copolymer synthesized with silyl reagents methacrylic acid-3-(trimethoxysilyl) propyl ester (MPS) and tetraethyl orthosilicate (TEOS) based on ferriferrous oxide (Fe3O4), whose characteristics were confirmed by a scanning electron microscope (SEM). The proposed magnetic dispersive solid-phase extraction (MDSPE) method provided a rapid, environmentally friendly and magnetic stuff recyclable approach for the triazole pesticide analysis. By means of optimal conditions, the recoveries of 15 triazoles (spiked at 20 mu g kg(-1)) ranged from 90.5 to 105.9%. The method showed good linearity, sensitivity in the range of mu g per kilogram and repeatability (relative standard deviation below 6.8%, n = 5). The proposed method was confirmed to be a simple, rapid and efficient method for the analysis of triazole pesticide residuals in honey samples.
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