中文摘要：本文开发了一个基于多壁碳纳米管的简单快速多插头过滤净化法，可以在不考虑条件和洗脱步骤下，在几秒钟内完成大米、小麦和玉米中124种农药残留的检测。为了获得满意的回收率和净化性能，本文通过分散固相萃取过程对每个基质的吸附剂组合进行了优化。结果显示，所有农药残留线性度良好，校准曲线系数均大于0.9958，大多数农药的回收率在70～120%之间（n＝5），相对标准偏差小于20%。所有基质中所有农药残留的检测限和定量限分别在0.1-1.3μg／kg和0.2-4.3μg／kg范围内。因此，多插头过滤净化法优于分散固相萃取法，可以应用于市售样本农药残留的常规监测。
外文摘要：A simple and rapid multiplug filtration cleanup method based on multiwalled carbon nanotubes was developed to determine 124 pesticide residues in rice, wheat, and corn, which could be done in a few seconds without conditioning and elution steps. Various combinations of sorbents were optimized for each matrix with a dispersive solid-phase extraction procedure to get a satisfactory recovery and clean-up performance. Good linearity was obtained for all pesticides with calibration curve coefficients larger than 0.9958. Most recoveries for the majority pesticides were between 70 and 120% (n = 5) with relative standard deviations below 20%. The limit of detection was 0.1-1.3 mu g/kg, and the limit of quantification was 0.2-4.3 mu g/kg for the pesticides in all matrices. The work suggests that the multiplug filtration cleanup method is better than the dispersive solid-phase extraction method and it could be applied to routinely monitor pesticide residues in market samples.
 
外文关键词：corn, multiplug filtration cleanup, pesticide residues, rice, wheat
作者：Han, Yongtao; Song, Le; Zou, Nan; Qin, Yuhong; Li, Xuesheng; Pan,
作者单位：China Agr Univ, Coll Sci, Dept Appl Chem, Beijing 100193, Peoples R China.
期刊名称：JOURNAL OF SEPARATION SCIENCE
期刊影响因子：2.741
出版年份：2017
出版刊次：2
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