番石榴果实中5种菊酯类农药残留量检测技术研究  

Detection of Five Pyrethroid Pesticide Residues in Guava Fruit by QuEChERS Combined with GC-MS

作　　者：涂雪元 郑静 朱培杰 马德运 TU Xueyuan;ZHENG Jing;ZHU Peijie;MADeyun(Logistics Management Department,Zhaoqing University,Zhaoqing,Guangdong 526061,China;School of Food and Pharmaceutical Engineering,Zhaoqing University,Zhaoqing,Guangdong 526061,China)

机构地区：[1]肇庆学院后勤管理处,广东肇庆526061 [2]肇庆学院食品与制药工程学院,广东肇庆526061

出　　处：《肇庆学院学报》2021年第5期52-58,共7页Journal of Zhaoqing University

基　　金：茂名市食品药品检验培训科研项目(22130805)。

摘　　要：采用QuEChERS法作为番石榴样品的前处理方法,通过往样品中加标准溶液进行定量,结合气相色谱-质谱联用体系(GC-MS)检测番石榴中的5种菊酯类农药残留量.该分析方法在加标样品浓度为0.5~50μg/g范围内,呈现良好的线性关系,相关系数(r)均大于0.996;回收率在76.47%~148.91%之间;检出限在0.04~0.09 mg/kg之间;RSD在2.95%~6.59%之间.QuECHERS法结合GC-MS技术可快速、高效、准确检测番石榴中5种菊酯类农药的残留量.The QuEChERS method was used as the pretreatment method of guava samples.Five pyrethroid pesticide residues in guava were determined by adding standard solution to the samples and GC-MS.The method showed a good linear relationship in the concentration range of 0.5~50μg/g,with the correlation coefficients(R)were all above 0.996.The recoveries ranged from 76.47%to 148.91%.The detection limits were in the range 0.04~0.09 mg/kg and RSD were 2.95%~6.59%.The QuEChERS combined with GC-MS can be used for the rapid,efficient and accurate determination of five pyrethroid pesticide residues in Guava.

关 键 词：QUECHERS GC-MS 菊酯类 番石榴 农药残留 

分 类 号：O652.1[理学—分析化学]