茶叶中氧化乐果农药残留量测定的不确定度评定  

Uncertainty Evaluation in Determination of Omethoate Pesticide Residues in Tea

作　　者：高宏[1] 郭芳芳[1] Gao Hong;Guo Fangfang(Physical and Chemical Testing Center in Jiangsu Province,Jiangsu,210042)

机构地区：[1]江苏省理化测试中心

出　　处：《当代化工研究》2019年第12期108-109,共2页Modern Chemical Research

摘　　要：分析了使用液相色谱-串联质谱仪测定茶叶中氧化乐果农药各种不确定度的来源,并加以评定.结果发现样品前处理过程和测量重复性引入的不确定度有着较大的影响,本实验中氧化乐果不确定度各分量相互独立,用该方法测量茶叶中氧化乐果含量为:0.10±0.00486(mg/kg),k=2.This paper analyzed and evaluated the sources of various uncertainties in the determination of omethoate pesticide in tea by liquid chromatography-tandem mass spectrometry. The results showed that the uncertainty introduced by sample pretreatment process and measurement repeatability had great influence. In this experiment, the components of the uncertainty of omethoate were independent of each other. The content of omethoate in tea measured by this method was 0.10±0.00486(mg/kg), k=2.

关 键 词：液相色谱-串联质谱 茶叶 氧化乐果 

分 类 号：TQ45[化学工程—农药化工]