中文摘要：本文基于气相色谱法和电子捕获检测器建立了一个简单且敏感的分析方法，并对其在筛选和定量测定卷心菜、花椰菜、花椰菜、生菜、芹菜、菠菜和芥末中的15种农药残留量方面进行了验证。该方法分为两步：首先采用帕累托图确定重要因子，然后采用中央组合设计法对重要因子进行优化，Minitab统计软件用来进行多变量实验。该方法检测结果显示线性范围在0.5-3 mg/kg之间，相关系数为0.99，检测限范围为0.02-4.5 ng/g，定量限范围为0.2-45 ng/g，平均回收率范围为60%-128%，相对标准差在0.2-19.8%之间。该方法已经应用于马来西亚金马伦高地实际蔬菜样本的农药残留检测。
外文摘要：A simple and sensitive analytical method has been developed employing gas chromatography coupled with electron capture detector (GC-ECD), and validated for screening and quantification of 15 pesticide residues at trace levels in cabbage, broccoli, cauliflower, lettuce, celery, spinach, and mustard. The method consists of two steps, first, to determine the significance of each factor by Pareto chart followed by optimization of these significant factors using central composite design (CCD). Minitab statistical software was used for these multivariateexperiments for the generation of 2(4-1) design and CCD matrices. The method evaluation was done by external standard calibration with linearity range between 0.5 and 3 mg/kg, with correlation coefficient 0.99, limit of detection (LOD) ranges between 0.02 and 4.5 ng/g, and limit of quantification (LOQ) ranges between 0.2 and 45 ng/g. The average recovery was between 60% and 128%, with RSD 0.2-19.8%. The method was applied on real vegetable samples from Cameron Highlands. (C) 2016 Elsevier Ltd. All rights reserved.
 
外文关键词：Pesticide residues, GC-ECD/GC-MS, Vegetables
作者：Farina, Yang; Abdullah, Md Pauzi; Bibi, Nusrat; Khalik, Wan Mohd Afiq Wan Mohd
作者单位：Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Chem Sci & Food Technol, Bangi 43600, Malaysia.
期刊名称：FOOD CHEMISTRY
期刊影响因子：4.529
出版年份：2017
出版刊次：6
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