引用本文:
张煜卓, 于湛, 王妍, 崔忠宝. 应用QuEChERS技术与气相色谱-串联质谱法同时检测榛子中70种农药残留[J]. 环境化学, 2018, 37(12): 2827-2831
ZHANG Yuzhuo, YU Zhan, WANG Yan, CUI Zhongbao. Simultaneous determination of 70 pesticide residues in hazelnuts by QuEChERS combined with gas chromatography-tandem mass spectrometry[J]. Environmental Chemistry, 2018, 37(12): 2827-2831

应用QuEChERS技术与气相色谱-串联质谱法同时检测榛子中70种农药残留
张煜卓1, 于湛1, 王妍2, 崔忠宝2
1. 沈阳师范大学, 沈阳, 110034;
2. 岛津企业管理(中国)有限公司, 沈阳, 110016
摘要:
使用乙腈(含1%乙酸)提取样品中的农药,经N-丙基乙二胺(PSA)粉及碳十八粉混合净化,再经气相色谱-三重四级杆串联质谱分析.建立榛子中70种农药残留同时检测的QuEChERS-气相色谱-串联质谱分析方法.方法结果表明,70种农药在线性范围内(5-100 μg·L-1)相关系数均大于0.9915.方法检出限范围为0.001-1.466 μg·kg-1,方法定量限范围为0.003-4.888 μg·kg-1.当加标水平为75 μg·kg-1时,其回收率在70.00%-94.73%之间,相对标准偏差(RSD)在0.29%-11.80%之间.本方法具有操作简单、快速、灵敏的特点,适用于榛子中农药多残留的检测.
关键词:    榛子    QuEChERS    GC-MS/MS    农残   
Simultaneous determination of 70 pesticide residues in hazelnuts by QuEChERS combined with gas chromatography-tandem mass spectrometry
ZHANG Yuzhuo1, YU Zhan1, WANG Yan2, CUI Zhongbao2
1. Shenyang Normal University, Shenyang, 110034, China;
2. SHIMADZU Enterprise Management(China) Co., Ltd., Shenyang, 110016, China
Abstract:
To establish a QuEChERS-gas chromatography-tandem mass spectrometric method for simultaneous determination of 70 pesticide residues in hazelnuts. The target pesticides in the hazelnut were extracted with acetonitrile and purified with N,N-diisopropylamino ethylamine primary secondary amine (PSA) and C18, then analyzed by gas chromatography-tandem mass spectrometry. The result implied that all the linear relationships were good with the correlation coefficients all greater than 0.9915. The limits of detection of the method were 0.001-1.466 μg·kg-1, the limits of quantification were 0.003-4.888 μg·kg-1. When the 70 kinds of pesticide residues adding standard level was 75 μg·kg-1, the recovery rates and the relative standard deviation (RSD) of the method were from 70.00%-94.73% and 0.29%-11.80%, respectively. The method is convenient, quick, sensitive, and it is suitable to the analysis of multi pesticide residues in hazelnuts.
Key words:    hazelnuts    QuEChERS    GC-MS/MS    pesticide residue   
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参考文献:
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