气相色谱-质谱联用法测定糙米中9种拟除虫菊酯的残留  

Determination of 9 synthetic pyrethroids in browm rice by gas chromatography–mass spectrometry

作　　者：李妍[1] 董伟峰[1] 王璇[2] 刁文婷[3] 王法众 张静波 刘慧颖[1] 马嗣同 曹际娟[1] 

机构地区：[1]辽宁出入境检验检疫局,大连116001 [2]塔城出入境检验检疫局,塔城834700 [3]通标标准技术服务有限公司大连分公司,大连116000 [4]中粮日清(大连)有限公司,大连116610 [5]大连市产品质量监督检验所,大连116001

出　　处：《食品安全质量检测学报》2015年第1期65-71,共7页Journal of Food Safety and Quality

基　　金：国家质检总局科技计划项目(2010IK134)~~

摘　　要：目的建立气相色谱-质谱联用法测定糙米中9种拟除虫菊酯类农药多残留分析方法。方法样品经乙腈提取,C18固相萃取柱净化,采用气相色谱-质谱串联法进行测定。结果 9种农药均在18 min之内流出,相关系数r在0.99以上,回收率均为79.9%~122.8%之间,重现性良好,相对标准偏差在11%以内。结论本方法可以简便快捷地一次性检测出糙米中9种拟除虫菊酯类农药残留,较实用于日常大批量样品的检测。Objective To establish a gas chromatography–mass spectrometry method for the simultaneous determination of 9 synthetic pyrethroids in browm rice. Methods Samples were extracted with acetonitrile, cleaned up with an SPE-C18 cartridge. Finally, the analyte was determined by gas chromatography–mass spectrometry. Results All the 9 kinds of synthetic pyrethroids were drained out within 18 minutes. The correlation coefficient r was above 0.99. The recoveries were between 79.9%~122.8%, and the relative standard deviation was below 11%. Conclusion This method can be used for the determination of 9 synthetic pyrethroids in browm rice. This method is rapid, accurate and suitable for 9 synthetic pyrethroids of large quantities of samples, and can be used in routine assay.

关 键 词：糙米 气相色谱-质谱联用法 拟除虫菊酯 

分 类 号：O657.63[理学—分析化学] TS210.7[理学—化学]