您好，欢迎访问浙江省农业科学院 机构知识库！
浙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Development, validation, comparison, and implementation of a highly efficient and effective method using magnetic solid-phase extraction with hydrophilic-lipophilic-balanced materials for LC-MS/MS analysis of pesticides in seawater

文献类型： 外文期刊

作者： Liu, Zhenzhen 1 ; Qi, Peipei 2 ; Wang, Jiao 2 ; Wang, Zhiwei 2 ; Di, Shanshan 2 ; Xu, Hao 2 ; Zhao, Huiyu 2 ; Wang, Qiang 2 ;

作者机构： 1.Xiamen Univ, State Key Lab Marine Environm Sci, Coll Environm & Ecol, Xiamen 361005, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Hangzhou 310021, Peoples R China

3.State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Peoples R China

4.Key Lab Detect Pesticide Residues & Control Zheji, Hangzhou 310021, Peoples R China

5.Agr Minist, Key Lab Pesticide Residue Detect, Hangzhou 310021, Peoples R China

关键词： Magnetic particle adsorbents; N-vinyl pyrrolidone; Divinyl benzene; Liquid chromatography-tandem mass spectrometry; Pesticides residue analysis; Seawater

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2020 年 708 卷

页码：

收录情况： SCI

摘要： To achieve multi-pesticides residue analysis in seawater, hydrophilic-lipophilic-balanced magnetic particles were designed and fabricated by swelling polymerization of divinyl benzene (DVB) and N-vinyl pyrrolidone (NVP) on the surface of Fe3O4@SiO2 magnetic particles. The ratio of DVB to NVP was adjusted to achieve a proper balance in hydrophilicity and lipophilicity. The obtained magnetic particles were systematically characterized by TEM, SEM, FT-IR and vibrating sample magnetization. Based on the optimized magnetic nanoparticles, a sensitive magnetic solid-phase extraction method was developed for the simultaneous pre-concentration and determination of 96-pesticide residues from large-volume seawater samples prior to being detected by liquid chromatography-tandem mass spectrometry. Recoveries of pesticides in spiked seawater samples (0.001, 0.01, 0.1, 1.0 mu g L-1) ranged from 62% to 112% with RSDs less than 21%. The method limits of detection of 96 pesticides ranged from 0.13 to 0.42 ng L-1, the method limits of quantification of 96 pesticides ranged from 1.0 to 10 ng L-1. The method was successfully applied to pesticide residue analysis in water samples from Jiulong River Estuary of China, demonstrating the prospects of this technique as a potential method for the rapid determination of trace levels of multi-pesticide residues in seawater. (C) 2019 Elsevier B.V. All rights reserved.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：浙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台