中文摘要：本文应用新型QuEChERS方法与气相色谱-质谱法联用检测绿辣椒、红辣椒和脱水红辣椒中29种农药残留量，采用乙腈（1%乙酸）对农药残留进行提取，氯化钠进行分区萃取，氨基酸和十八烷基硅烷丙酮进行纯化。在最佳条件下，29种农药的校准曲线均表现出良好得线性关系，回收范围为0.1-10g/mL，相关系数大于0.998。绿辣椒、红辣椒和脱水红辣椒中29种农药检测限分别为0.006-0.06mg/kg、0.005-0.039mg/kg和0.014-0.25mg/kg，均低于规定的最大残留值。平均回收率在70.1-110%之间，相对标准差小于13%。该方法已经成功地应用于商业产品的农药残留检测中。
外文摘要：This study describes the development and use of a modified quick, easy, cheap, effective, rugged and safe (QuEChERS) method coupled with gas chromatography with mass spectrometry to determine 29 pesticide residues in green, red and dehydrated red peppers. Pesticides were extracted with acetonitrile (1% acetic acid), partitioned with sodium chloride and purified with primary secondary amino and octadecyl silane in acetone. The QuEChERS extraction conditions were optimized, and the matrix effects that might influence recoveries were evaluated and minimized using matrix-matched calibration curves. Under the optimized conditions, the calibration curves for 29 pesticides showed good linearity in the concentration range of 0.1-10g/mL with determination coefficient R-2>0.998. The limits of quantification of the 29 pesticides were 0.006-0.06mg/kg for green pepper, 0.005-0.039mg/kg for red pepper and 0.014-0.25mg/kg for dehydrated red pepper. These values are below the suggested regulatory maximum residue limits. The mean recoveries ranged between 70.1 and 110%, and the relative standard deviations were <13%. The developed method was successfully applied to commercial samples. Some samples were found to contain the 29 pesticides with levels below the legal limits. Copyright (c) 2016 John Wiley & Sons, Ltd.
外文关键词：pepper, residue analysis, QuEChERS, gas chromatography-mass spectrometry (GC-MS)
作者：Liu, Min; Xie, Yan; Li, Haichang; Meng, Xingang; Zhang, Yuping; Hu, Deyu; Zhang, Kankan; Xue, Wei
作者单位：State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering,Key Laboratory of Green Pesticide and Agricultural Bioengineering,Ministry of Education, Guizhou University, Guiyang 550025, China
期刊名称：BIOMEDICAL CHROMATOGRAPHY
期刊影响因子：1.729
出版年份：2016
出版刊次：10
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