One-step purification using MWCNTs@chitosan composite adsorbents for effective matrix interference removal in determination of 49 Pesticides in aquatic products
文献类型： 外文期刊
作者： Zhou, Ruidong 1 ; Zhang, Xinyuan 1 ; Wen, Yupeng 1 ; Huo, Wendi 1 ; Mu, Yingchun 1 ; Liu, Huan 1 ; Zhang, Chaoying 1 ; Li, Jincheng 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Beijing 100141, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Control Qual & Safety Aquat Prod, Beijing 100141, Peoples R China
关键词： Pesticides; One-step purification; MWCNTs; HPLC-MS/MS; Analysis of Aquatic products
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 496 卷
页码：
收录情况： SCI
摘要： Multi-walled carbon nanotubes (MWCNTs) are known for their excellent purification properties in QuEChERSbased pesticide analysis, but their potential release and non-recyclability pose environmental and economic challenges. In this study, a novel strategy is proposed to immobilize MWCNTs with chitosan, forming the MWCNTs@chitosan composite, which enables the recyclability of MWCNTs. This composite was employed in a one-step pressure filtration purification method to simultaneously purify extracts of 49 pesticides from aquatic products. Coupled with HPLC-MS/MS, an optimized QuEChERS method was successfully validated for the determination of 49 pesticides. The MWCNTs@chitosan composite demonstrated excellent clean-up capability, effectively removing interfering substances from crude extracts while maintaining recoveries of 71.2-119.4 % and relative standard deviations (RSDs) below 20.0 %. These results demonstrate the composite's suitability as a QuEChERS cleanup material, with potential applications in other complex matrices.
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