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首页> 外文期刊>Chromatographia >Development and Application of the Dispersive Solid-Phase Extraction Method Based on Molecular Imprinted Polymers for Removal of Matrix Components of Bivalve Shellfish Extracts in the GC-MS/MS Analysis of Amide/Dinitroaniline/Substituted Urea Herbicides
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Development and Application of the Dispersive Solid-Phase Extraction Method Based on Molecular Imprinted Polymers for Removal of Matrix Components of Bivalve Shellfish Extracts in the GC-MS/MS Analysis of Amide/Dinitroaniline/Substituted Urea Herbicides

机译：基于分子印迹聚合物的分散固相提取方法的开发和应用除去甘露出剂/二硝基胺/取代尿素除草剂的GC-MS / MS分析中双抗体贝类提取物基质组分的去除

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摘要

A modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) sample preparation method coupled with gas chromatography-tandem mass spectrometry has been developed for the simultaneous analysis of amide/dinitroaniline/substituted urea herbicides in bivalve shellfish samples. A molecularly imprinted polymer (MIP) synthesized through bulk polymerization exhibited strong group-selective interactions with pigments, including beta-carotene, chlorophyll A, and fucoxanthin, in bivalve shellfish extracts. Afterward, a modified QuEChERS method based on MIPs and primary and secondary amines was established to effectively remove matrix components in bivalve shellfish samples. Under the optimal conditions, good linearities were obtained in all of the analytes with R-2 larger than 0.9995. Limits of quantification were in the range of 0.03-8.88 mu g kg(-1), respectively. The recoveries of all of the herbicides spiked at three concentrations of 10, 25, and 50 mu g kg(-1) in blank bivalve shellfish samples ranged from 81 to 109% with intra-day and inter-day relative standard deviations less than 8%, respectively. Results demonstrated that the proposed QuEChERS method coupled with GC-MS/MS was applied successfully to simultaneously determine 26 amide/dinitroaniline/substituted urea herbicides in bivalve shellfish.
机译：已经开发了一种改进的快速，简单，便宜，有效，有效，粗糙的和安全（Quech）样品制备方法，用于同时分析酰胺/二硝基胺/取代尿素除草剂在双向贝类样品中的同时分析。通过本体聚合合成的分子印迹聚合物（MIP）表现出与颜料的强基团选择性相互作用，包括β-胡萝卜素，叶绿素A和Fucoxanthin，在双撇子贝类提取物中。之后，建立了基于MIP和次级胺的改进的QueCher方法，以有效地除去双壳贝类样品中的基质组分。在最佳条件下，在大于0.9995的所有分析物中获得了良好的线性。分别定量限制分别为0.03-8.88μg（-1）。在胎儿双子壳类样品中以三种浓度为10,25和50μg（-1）的所有除草剂的回收率范围为81至109％，内部和日间相对标准偏差小于8 ％， 分别。结果证明，拟议的QueChers方法与GC-MS / MS相结合，成功地应用于同时测定二甲壳中的26氨/二硝基胺/取代尿素除草剂。

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  • 来源
    《Chromatographia》 |2019年第6期|共10页
  • 作者

    Yu Xin-ru; Zhang Ze-ming; Li Wei; Zhang Rong-rong; Jiao Hai-feng; Zhao Jian; Sun Ai-li; Shi Xi-zhi; Chen Jiong;

  • 作者单位

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

    Ningbo Acad Oceanol &

    Fishery Ningbo 315012 Zhejiang Peoples R China;

    Ningbo Acad Agr Sci Ningbo 315040 Zhejiang Peoples R China;

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

    Ningbo Univ Sch Marine Sci 818 Fenghua Rd Ningbo 315211 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分析化学;
  • 关键词

    Herbicides; Shellfish; GC-MS/MS; Molecularly imprinted polymer;

    机译：除草剂;贝类;GC-MS / MS;分子印迹聚合物;

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