Generic imprinted fiber array strategy for high-throughput and ultrasensitive simultaneous determination of multiple neonicotinoids
文献类型： 外文期刊
作者： Wang, Dan 1 ; Liu, Yuanchen 1 ; Xu, Zhigang 1 ; Ji, Yang 1 ; Si, Xiaoxi 2 ; Lin, Tao 3 ; Liu, Hongcheng 3 ; Liu, Zhimin 1 ;
作者机构： 1.Kunming Univ Sci & Technol, Fac Sci, Kunming 650500, Peoples R China
2.R&D Ctr China Tobacco Yunnan Ind CoLtd, Kunming 650231, Peoples R China
3.Yunnan Acad Agr Sci, Inst Qual Stand & Testing Technol, Kunming 650223, Peoples R China
关键词： Generic imprinted fiber array; Molecular imprinting; High throughput; Enrichment strategy; Neonicotinoid
期刊名称：FOOD CHEMISTRY （ 影响因子：9.231； 五年影响因子：8.795 ）
ISSN： 0308-8146
年卷期： 2022 年 382 卷
页码：
收录情况： SCI
摘要： Herein, a new generic fiber array based on molecular imprinting solid-phase microextraction (MIP-SPME) technology, was described to enrich trace multiple neonicotinoids with high flux from the food matrix. To begin with adsorption experiments coupled with theoretical calculations provided universal means for selecting the preferred template molecule clothianidin (CLT). Results demonstrated that the CLT-MIP fiber array exhibited significantly superior enrichment ability of 1189-2356-folds for six neonicotinoids compared with two kinds of commercial fiber arrays. Furthermore, the practicability of the CLT-MIP fiber array was verified by simultaneously determining multiple neonicotinoids in tea and honey samples. The CLT-MIP fiber array showed a limit of detection (LOD) of 0.03-0.58 mu g/L for six neonicotinoids. The method also exhibited satisfactory recoveries ranging from 85.4% to 116.8% with RSD (n = 3) less than 8.8%. The imprinted fiber array has the advantages of high-throughput, predominant reproducibility, and accurate quantitation multi-component, and it may open up a new mean to efficiently enrich high-throughput and simultaneously detect multiple compounds from food samples.
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