Determination of 14 Lipophilic Pesticide Residues in Raw Propolis by Selective Sample Preparation and Gas Chromatography-Tandem Mass Spectrometry
文献类型： 外文期刊
作者： Wang, Xiangyun 1 ; Wang, Zhiwei 2 ; Di, Shanshan 2 ; Xue, Xiaofeng 3 ; Jin, Yinyin 2 ; Qi, Peipei 2 ; Wang, Xinquan 2 ; H 1 ;
作者机构： 1.China Agr Univ, Dept Appl Chem, Coll Sci, Beijing 100193, Peoples R China
2.Zhejiang Acad Agr Sci, MOA Key Lab Pesticide Residue Detect, Inst Qual & Stand Agroprod, Hangzhou 310021, Peoples R China
3.Chinese Acad Agr Sci, Inst Apiculture Res, Beijing 100093, Peoples R China
关键词： Tau-fluvalinate; Pyrethroids; EMR-Lipid; GC-MS; MS
期刊名称：FOOD ANALYTICAL METHODS （ 影响因子：3.366； 五年影响因子：3.07 ）
ISSN： 1936-9751
年卷期： 2020 年 13 卷 9 期
页码：
收录情况： SCI
摘要： A selective and reliable method was developed and validated for the determination of 14 lipophilic pesticides in raw propolis by gas chromatography-tandem mass spectrometry (GC-MS/MS) analysis. A test portion of milled sample was extracted with n-hexane followed by back extraction with acetonitrile and cleanup using EMR-Lipid and Florisil column adsorption. Matrix-matched standards were used to compensate for matrix effects. Typical linear correlation coefficients (R-2) were >= 0.989 in concentration range of 0.001-0.200 mu g/mL. Method validation was carried out at three spiking levels and three individual days, and it was found that the mean interday average recoveries were 61.0-106.8% with relative standard deviations <= 16.9%. Limits of quantification were ranged from 0.002 to 0.020 mu g/g. Analysis of market propolis samples showed contamination by pesticides (e.g., tau-fluvalinate) to some degree.
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