中文摘要：基于QuEChERS的样本预处理方法和GC-MS/MS技术，本文建立了一种果蔬样本中140多种农药残留的检测分析方法。该方法在0.01、0.05和 0.5 mg/kg的加标水平下，整体回收率分别为102、95和 95%，相对标准偏差值分别为7 +/- 3、7 +/- 4和7 +/- 3 %，并且超过90%目标化合物的定量限为0.01mg/kg。
外文摘要：A multiresidue method for the analysis of over 140 multiclass pesticides in fruiting vegetables,based on quick, easy, cheap, effective, rugged, and safe (QuEChERS) sample preparation procedure followed by gas chromatography-tandem mass spectrometry (GC-MS/MS), was established. In the validation study, the overall recoveries from spiked samples were 102 +/- 7, 95 +/- 7, and 95 +/- 7 % with RSD values of 7 +/- 3, 7 +/- 4, and 7 +/- 3 % at the spiking levels of 0.01, 0.05, and 0.5 mg kg(-1), respectively, demonstrating fitness for purpose of the method. The limit of quantification (LOQ) was 0.01 mg kg(-1) for more than 90 % of the target compounds. The analysis of over 300 samples of tomatoes, sweet peppers, and cucumbers was carried out in 2006-2014. Of these samples, 52 % contained pesticide residues but the results of the assessment of dietary exposure supported the conclusion that the presence of pesticide residues was unlikely to have a negative effect on the health of consumers. Although some of the pesticides detected in years 2006-2009 are no longer approved in the European Union member countries (namely endosulfan, oxadixyl, procymidone, propargite, and tolylfluanid), the consumer dietary exposure was low and did not exceed 12 % of the acceptable daily intake (ADI) considering both adults' and children's diet. Regarding short-term exposure (acute), in only one case of procymidone in sweet pepper, the acute reference dose (ARfD) for children was exceeded by 139.6 % of the ARfD..
外文关键词：Pesticide residue analysis；Fruiting vegetables；Gas chromatography；Tandem mass spectrometry；Dietary consumer exposure
作者： Stanis?aw Walorczyk； Izabela Kope?；Ewa Szpyrka
作者单位：Institute of Plant Protection—National Research Institute,W?adys?awa W?gorka 20, 60-318 Poznań, Poland
期刊名称：FOOD ANALYTICAL METHODS
期刊影响因子：2.167
出版年份：2016
出版刊次：9
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