中文摘要：本文基于加标校准曲线法和改良QuEChERS样品制备法建立了一种快速、简单、准确的黄瓜中12种农药残留的气相色谱-质谱法检测方法。在5种浓度水平（n=3）下，农药残留回收率在80.6-112.3%范围，相对标准差低于20%。所有农药残留的检测限均低于10 ng/g，定量限均低于25ng/g。本研究使用该方法对60种温室和大田黄瓜样本中的特定农药残留进行同时检测。结果发现，60种分析样本中41.7%的样本含有农药残留，其中，31.7%的样本中农药残留浓度低于最大农残值，10%的样本高于最大残留值。
外文摘要：Cucumber is one of the main vegetables in Iranian food basket. A wide range of pesticides are used for crops protection during the cultivation of vegetables such as cucumber due to heavy pest infestation. Analysis of pesticide residues in food and other environmental commodities have become essential requirement for consumers, producers, and food quality control authorities. This study was aimed at determination of pesticides residues in cucumber as a main vegetable in Iranian food basket. A reliable, rapid and accurate method based on spiked calibration curves and modified QuEChERS sample preparation was developed for determination of 12 pesticide residues in cucumber by gas chromatography-mass spectrometry (GC/MS). The use of spiked calibration standards for constructing the calibration curve substantially reduced adverse matrix-related effects. The recovery of pesticides at 5 concentration levels (n = 3) was in the range of 80.6-112.3. The method was proved to be repeatable with RSD lower than 20%. The limits of detection and quantification for all pesticides were < 10 ng/g and < 25 ng/g, respectively. The developed method was used for simultaneous determination of the selected pesticides in 60 greenhouse and garden cucumber samples. Among the 60 analyzed samples, 41.7% of them were contaminated with pesticide residues which 31.7% of samples had pesticide residues lower than maximum residue limit and 10% of samples had residue higher than maximum residue limit.
 
外文关键词：Pesticide, Spiked calibration curve, GC/MS, Cucumber, Multi residue, Iran
作者：Nasiri, Azadeh; Amirahmadi, Maryam; Mousavi, Zahra; Shoeibi, Shahram; Khajeamiri, Alireza; Kobarfard, Farzad
作者单位：Shahid Beheshti Med Univ, Sch Pharm, Dept Med Chem, Tehran, Iran.
期刊名称：IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH
期刊影响因子：1.352
出版年份：2016
出版刊次：4
点击下载：气相色谱-质谱法测定黄瓜中12种农药残留