| 分散固体萃取法测定蔬菜水果中25种农药残留 |
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| 引用本文： | 杨梅.分散固体萃取法测定蔬菜水果中25种农药残留[J].农药科学与管理,2011,32(11):35-39. |
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| 作者姓名： | 杨梅 |
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| 作者单位： | 上海天祥质量技术服务有限公司食品部,上海,200233 |
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| 摘 要： | 本文研究了分散固体萃取方法快速测定蔬菜水果中的25种农药残留的方法。采用一种新的样品前处理技术,用0.1%冰乙酸乙腈溶液从蔬菜水果中提取净化25种农药残留,运用GC/MS进行分析。用内标法定量,加标浓度分别为0.01、0.05、0.1μg/mg时,回收率在75.06～108.26%之间,相对偏差不>10%。方法检出下限为0.01～0.05μg/mg,用该方法可实现对蔬菜水果中农药残留的检测。
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| 关 键 词： | 分散固相萃取 气相色谱质谱 农药残留 |
Determination of 25 Pesticides in Vegetables and Fruits by QuEchERS |
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| Yang Mei,Food Lab.,Shanghai ,China.Determination of 25 Pesticides in Vegetables and Fruits by QuEchERS[J].Pesticide Science and Administration,2011,32(11):35-39. |
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| Authors: | Yang Mei Food Lab Shanghai China |
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| Institution: | Yang Mei(Shanghai Intertek Co.,Ltd.(ITS),Food Lab.,Shanghai 200233,China) |
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| Abstract: | An analytic method was developed for determination of 25 Herbicides in Vegetable and Fruits by QuEchERS.It adopts a new pretreatment technology,and abstract 25 pesticides from vegetable and fruits with Acetonitrile contain 0.1% acetic acid,then analysis by GC-MS.It was quantified by the internal standard method.When pesticides in sample at the concentrations of 0.05,0.1,1.0μg/mg,the recoveries were in the range of 75.06～108.26 %.The limits of detection were in the range of 0.01～0.05μg/mg.It was confirmed that the proposed method can be applied in Vegetables and Fruits analysis. |
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| Keywords: | QuEchERS gas chromatography-mass spectrometry pesticides |
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