Multi-pesticides residue analysis of grains using modified magnetic nanoparticle adsorbent for facile and efficient cleanup
文献类型: 外文期刊
第一作者: Liu, Zhenzhen
作者: Liu, Zhenzhen;Qi, Peipei;Wang, Xiangyun;Wang, Zhiwei;Xu, Xiahong;Zhang, Hu;Wang, Qiang;Wang, Xinquan;Liu, Zhenzhen;Chen, Wenxue;Wang, Qiang;Qi, Peipei;Wang, Xiangyun;Wang, Qiang;Qi, Peipei;Wang, Xiangyun;Wang, Zhiwei;Xu, Xiahong;Zhang, Hu;Wang, Xinquan;Wang, Zhiwei;Xu, Xiahong;Zhang, Hu;Wang, Xinquan
作者机构:
关键词: Fe3O4-PSA;Grain;Multi-pesticides residue;LC-MS/MS
期刊名称:FOOD CHEMISTRY ( 影响因子:7.514; 五年影响因子:7.516 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: A facile, rapid sample pretreatment method was developed based on magnetic nanoparticles for multi pesticides residue analysis of grains. Magnetite (Fe3O4) nanoparticles modified with 3-(N,N-diethyla mino)propyltrimethoxysilane (Fe3O4-PSA) and commercial C18 were selected as the cleanup adsorbents to remove the target interferences of the matrix, such as fatty acids and non-polar compounds. Rice was used as the representative grain sample for method optimization. The amount of Fe3O4-PSA and C18 were systematically investigated for selecting the suitable purification conditions, and the simultaneous determination of 50 pesticides and 8 related metabolites in rice was established by liquid chromatography tandem mass spectrometry. Under the optimal conditions, the method validation was performed including linearity, sensitivity, matrix effect, recovery and precision, which all satisfy the requirement for pesticides residue analysis. Compared to the conventional QuEChERS method with non-magnetic material as cleanup adsorbent, the present method can save 30% of the pretreatment time, giving the high throughput analysis possible. (C) 2017 Elsevier Ltd. All rights reserved.
分类号: TS2`TS201.2
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