新一代材料在液相色谱-串联质谱法检测食用油中农药残留的萃取净化过程中的应用

Determination of pesticides in edible oils by liquid chromatography-tandem mass spectrometry employing new generation materials for dispersive solid phase extraction clean-up

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中文摘要:本文旨在评价采用UHPLC- MS/MS方法测定橄榄油、大豆和向日葵等食用油中165种农药残留的过程中几种吸附剂的脂肪清洗效果。研究结果显示,在10、20和50μg/mL 加标水平下,与其他吸附剂相比,EMR脂在回收率和RSD% 方面都表现出了较好的优势;在10、20、50、和500μg/mL 加标水平下,大多数农药残留的回收率为70-120% ,RSD% 小于20。为了进一步验证该方法的适用性,本文还将该处理程序应用到大豆和向日葵等其他油类植物的脂肪清洗中,结果均表现良好。
外文摘要:The goal of this work was to evaluate the efficiency of several sorbents on removal fats from edible oils (olive, soya and sunflower) during the clean-up step for posterior determination of 165 pesticides by UHPLC-QqQ-MS/MS system. The extraction procedure employed in this work was the citrate version of QuEChERS method followed by a step of freezing out with dry ice and clean-up evaluation using i) PSA with magnesium sulfate (d-SPE); ii) magnesium sulfate and Z-sep sorbent (d-SPE); iii) Z-sep (column SPE) and iv) Agilent Bond Elut QuEChERS Enhanced Matrix Removal-Lipid (EMR-Lipid). After evaluation of the recovery results at 10, 20 and 50 mu g kg(-1), the EMR-Lipid showed important advantages comparing to the other sorbents evaluated, such as better recovery rates and RSD%. The method was validated at the three concentrations described above. Analytical curves linearity was evaluated by spiking blank oil samples at 10, 20, 50, 100 and 500 mu g kg(-1). The method demonstrated good recoveries values between the acceptable range of 70-120% and RSD% < 20 for most of evaluated pesticides. In order to evaluate the performance of the method, this same procedure was employed to other oils such as soya and sunflower with very good results. (C) 2016 Elsevier B.V. All rights reserved.
外文关键词:Edible oils, Pesticides, Multi-residue method, UHPLC-MS/MS
作者:Dias, Jonatan V.; Cutillas, Victor; Lozano, Ana; Pizzutti, Ionara R.; Fernandez-Alba, Amadeo R
作者单位:Univ Almeria, European Union Reference Lab Pesticide Residues F, Agnfood Campus Int Excellence CeiA3, Almeria, Spain.
期刊名称:JOURNAL OF CHROMATOGRAPHY A
期刊影响因子:3.926
出版年份:2016
出版刊次:9
点击下载:新一代材料在液相色谱-串联质谱法检测食用油中农药残留的萃取净化过程中的应用
  1. 编译服务:农产品质量安全
  2. 编译者:贵淑婷
  3. 编译时间:2016-12-09