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当前位置: 首页 > 文章 > 气相色谱-串联质谱法同时测定龙眼中的噻菌灵、多效唑、己唑醇 农药 2014,53 (6) 423-425+462
Position: Home > Articles > Determination of Thiabendazole,Paclobutrazol and Hexaconazole Pesticide Residues in Longan Using GC-MS/MS Agrochemicals 2014,53 (6) 423-425+462

气相色谱-串联质谱法同时测定龙眼中的噻菌灵、多效唑、己唑醇

作  者：
张群;刘春华;吴南村;尹桂豪;吴小芳
单  位：
中国热带农科院分析测试中心海南省热带果蔬产品质量安全重点实验室
关键词：
龙眼;农药残留;气相色谱-串联质谱法
摘  要：
[目的]建立一种同时测定龙眼中噻菌灵、多效唑、己唑醇农药残留的气相色谱-串联质谱(GC-MS/MS)分析方法。[方法]龙眼样品经乙腈匀浆提取,盐析,石墨化炭黑/氨基混合型固相萃取柱净化,乙腈-甲苯(体积比3∶1)洗脱,浓缩液通过毛细管气相色谱柱分离,在三重串联四级杆多反应监测模式下测定。[结果]农药的添加水平在0.02~0.50 mg/kg范围时,3种农药的回收率在75.5%~102.8%之间,相对标准差为1.3%~9.1%;噻菌灵、多效唑、己唑醇的定量限分别为0.02、0.01、0.01 mg/kg。[结论]该方法灵敏、准确,能满足龙眼中噻菌灵、多效唑、己唑醇残留检测的要求。
译  名：
Determination of Thiabendazole,Paclobutrazol and Hexaconazole Pesticide Residues in Longan Using GC-MS/MS
作  者：
ZHANG Qun;LIU Chun-hua;WU Nan-cun;YIN Gui-hao;WU Xiao-fang;Analysis and Testing Center,CATAS,Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables;
关键词：
longan;;residues of pesticides;;GC-MS/MS
摘  要：
[Aims]The use of GC-MS/MS method to measure thiabendazole,paclobutrazol and hexaconazole pesticide residues in longan was introduced in this paper.[Methods]The samples were extracted with acetonitrile,and then were induced by sodium chloride.After cleanup on carbon/NH2 column with elution solvents of acetonitrile and toluene(3:1,by vol),the concentrated solution was separated by capillary gas chromatography column.Finally,the samples were determined under multiple reaction monitoring(MRM) mode.[Results]The average recoveries of three pesticides were75.5-102.8%when the spiked levels were 0.02,0.05,0.10 and 0.50 mg/kg,with relative standard deviations(RSDs)in the range of 1.3-9.1%.The limits of quantitation(LOQ) for thiabendazole,paclobutrazol and hexaconazole were0.02,0.01 and 0.01 mg/kg,respectively.[Conclusions]The method is sensitive,accurate,and satisfied for detection of thiabendazole,paclobutrazol and hexaconazole pesticide residues in longan.

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