Ibrahim A. Senosy , Zhi-Heng Lu , Dong-Dong Zhou , Talat M. Abdelrahman , Min Chen , Lv-Yun Zhuang , Xiao Liu , Yi-Wen Cao , Jian-Hong Li , Zhong- Hua Yang
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引用次数: 12
摘要
本文建立了磁环糊精-四氟对苯二甲酸(Fe3O4@TFN-CDPs)交联高效液相色谱法(HPLC)对6种药用植物中唑类农药残留量的定量分析方法。通过表征分析，Fe3O4@TFN-CDPs的外壳已被聚合物网状包裹，形成核壳结构。在最佳条件下，目标农药的检出限(lod)为0.011 ~ 0.106µg Kg - 1，限定限(loq)为0.036 ~ 0.354µg Kg - 1。6种药材样品中农药的回收率在60.1% ~ 102.3%之间波动。总之，基于Fe3O4@TFN-CDPs复合材料的方法为复杂基质中痕量农药的分析提供了新的思路。
Construction of a magnetic solid-phase extraction method for the analysis of azole pesticides residue in medicinal plants
In this work, a sensitive and cost-effective method for the quantitative analysis of azole pesticides residues in six medicinal plants was established based on magnetic cyclodextrin crosslinked with tetrafluoroterephthalonitrile (Fe3O4@TFN-CDPs) coupled with high-performance liquid chromatography (HPLC). Through characterization analysis, the outer shell of Fe3O4@TFN-CDPs has observed coating with a network of the polymer and forming a core–shell structure. Under the optimum conditions, the limits of detection (LODs) and limits of qualification (LOQs) of target pesticides were ranged from 0.011 to 0.106 µg Kg−1 and from 0.036 to 0.354 µg Kg−1, respectively. Finally, the achieved recoveries of pesticides in six medicinal samples fluctuated from 60.1% to 102.3%. Altogether, this method based on Fe3O4@TFN-CDPs composites provided a new idea for the analysis of trace pesticides in complicated matrices.
期刊介绍：
Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.
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