气相质谱法分析蔬菜、水果中41种农药残留

Analysis of 41 Kinds of Pesticide Residues in Vegetable and Fruit by Gas Phase Mass Spectrometry

本文采用农业部的行业标准NY/T 1380-2007《蔬菜、水果中51种农药多残留的测定气相色谱-质谱法》,采用较具代表性的大白菜作为样品基质,共对41种农药的残留量进行了测定。文中具体描述了实验中标准溶液、试剂溶液的配制,仪器的具体设置参数,样品前处理的具体过程,并按照国家标准GB/T 27404-2008《实验室质量控制规范食品理化检测》中规定的方法操作,选用四个浓度点进行四水平加标,每个点做6个平行,记录第一手的实验数据,对加标回收率及精密度进行计算分析,以验证实验的可行性。

In this paper, the industry standard NY/T 1380-2007 《Determination of 51 pesticide residues in vegetables and fruits by gas chromatography-mass spectrometry》,The residues of 41 pesticides in Chinese cabbage were determined by using representative Chinese cabbage as sample matrix. The preparation of standard solution and reagent solution, the specific setting parameters of the instrument, the specific process of sample pretreatment, And operate according to the method specified in national standard GB/T 27404-2008《Laboratory quality control specification for physical and chemical detection of food》, four concentration points are selected for four-level labeling, each point is made six parallel, the first-hand experimental data were recorded, and the recovery rate and precision were calculated and analyzed to verify the feasibility of the experiment.