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当前位置: 首页 > 文章 > 韭菜中34种农药残留同时检测的气相色谱-串联质谱确证方法 农药 2012,51 (11) 825-828
Position: Home > Articles > Multi residue Simultaneous Determination Study of 34 Pesticides in Leek by Gas Chromatography-Tandem Mass Spectrometry Agrochemicals 2012,51 (11) 825-828

韭菜中34种农药残留同时检测的气相色谱-串联质谱确证方法

作  者：
徐宜宏;蒋施;赵颖;金雁;胡姝;刘瑜;钟钰;李晓东;于丽
单  位：
沈阳出入境检验检疫局检验检疫综合技术中心
关键词：
气相色谱-串联质谱(GC-MS/MS);复杂基质;农药残留;QuEchERS法;韭菜
摘  要：
[目的]建立韭菜中34种农药残留同时检测的气相色谱串联质谱(GC-MS/MS)确证方法。[方法]选用乙腈-乙酸乙酯为提取溶剂,采用改进了的QuEchERS法为净化方法,气相色谱串联质谱(GC-MS/MS),多反应离子监测模式,内标法定量。[结果]在0.01~5.0 mg/L的质量浓度范围内,各农药相关系数均大于0.995,每种农药在不同基质中,添加0.005~0.1 mg/kg范围内(n=5),回收率为61.4%~116.3%,相对标准偏差(RSD)为4.7%~15.8%。[结论]方法准确性和重复性好、灵敏度高、操作简便,适用于韭菜类复杂基质蔬菜中多种农药残留的同时测定。
译  名：
Multi residue Simultaneous Determination Study of 34 Pesticides in Leek by Gas Chromatography-Tandem Mass Spectrometry
作  者：
XU Yi-hong,JIANG Shi,ZHAO Ying,JIN Yan,HU Shu,LIU Yu,ZHONG Yu,LI Xiao-dong,YU Li(Technology Center,Shenyang Entry-exit Inspection and Quarantine Bureau,Shenyang 110016,China)
关键词：
gas chromatography-tandem mass spectrometry(GC-MS/MS);complex matrix;pesticide residue;QuEchERS method;leek
摘  要：
[Aims] This experiment established a method of simultaneous determining 34 pesticides residues in leek by gas chromatography-tandem mass spectrometry(GC-MS/MS) was established.[Methods] Mixture of acetonitrile and ethyl acetate was used as the extraction solvent,improved QuEchERS method was adopted for sample purifying.Samples were determined and quantified through internal standard mothod by gas chromatography-tandem mass spectrometry(GC-MS/MS) in the multiple reaction monitoring mode(MRM).[Results] The results showed that in the linear range(0.01-5.0 mg/L) of each pesticide,the linearity of all the pesticides had correlation coefficient greater than 0.995.The recoveries of every kind of pesticides in different substrates were 61.4-116.3% at the spiked level of 0.005-0.1 mg/kg range(n=5),the relative standard deviations(RSD) were 4.7-15.8%.[Conclusions] The method was accurate,repeatableb simple and highly sensitive which was suitable for simultaneous determination of multiple pesticide residues in leek complex matrix vegetables.

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