Cyclodextrin-assisted dispersive liquid-liquid microextraction based on solidification of floating organic droplets coupled with HPLC for the determination of pyrethroid residues in cereals
文献类型： 外文期刊
作者： Jiang, Haijuan 1 ; Bi, Xinyuan 2 ; Huang, Xin 1 ; Guo, Xingle 1 ; Zou, Ziyu 3 ; Li, Ying 1 ; Jing, Xu 1 ; Wu, Junxue 3 ;
作者机构： 1.Shanxi Agr Univ, Coll Food Sci & Engn, Taigu 030801, Shanxi, Peoples R China
2.Shanxi Agr Univ, Agr Econ & Management Coll, Taiyuan 030006, Shanxi, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing 100097, Peoples R China
关键词： cyclodextrin; dispersive liquid-liquid microextraction; solidification of floating organic droplet; pyrethroids; cereals
期刊名称：ACTA CHROMATOGRAPHICA （ 影响因子：1.9； 五年影响因子：1.4 ）
ISSN： 1233-2356
年卷期： 2023 年 35 卷 1 期
页码：
收录情况： SCI
摘要： A simple, rapid, and environmentally friendly sample preparation method for pyrethroids determination in cereals using cyclodextrin-assisted dispersive liquid-liquid microextraction based on solidification of floating organic droplets coupled with high-performance liquid chromatography was established. The cereal samples were extracted with acetonitrile, cleaned up, and concentrated by green extractant menthol via g-cyclodextrin assisted extraction process. The extractant menthol dispersed as fine droplets in the cyclodextrin solution and then solidified at room temperature for efficient extraction and convenient collection. The optimized method provided good linearity in the range of 0.01- 10 mg kg-1 with limits of detection of 3.5-9.5 mg kg-1. The fortified recoveries of three pyrethroids (i.e., lambda-cyhalothrin, deltamethrin, and bifenthrin) in four cereals (i.e., rice, wheat, maize, and millet) at three levels were in the range of 77.6-101.6% with relative standard deviations of 0.6-6.6%. Overall, the proposed method can be successfully applied for the determination of pyrethroids in cereals.
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