Study on Subcritical Water Extraction of 12 Pesticides Residues in Vegetables and Fruits

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Study on Subcritical Water Extraction of 12 Pesticides Residues in Vegetables and Fruits

- Study on Subcritical Water Extraction of 12 Pesticides Residues in Vegetables and Fruits
- Vol. 30, Issue 4, Pages: 386-390(2011)
- 作者机构：
  
  天津出入境检验检疫局动植物与食品检测中心
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Study on Subcritical Water Extraction of 12 Pesticides Residues in Vegetables and Fruits. [J]. 30(4):386-390(2011)
DOI：

Study on Subcritical Water Extraction of 12 Pesticides Residues in Vegetables and Fruits. [J]. 30(4):386-390(2011) DOI：

摘要

利用亚临界水可以定量萃取基质中绝大部分化合物的特点，借助加速溶剂萃取仪(ASE)将亚临界水萃取与固相吸附联用，通过在ASE萃取池中填加C18吸附层的方式改进了萃取吸附模式，优化了萃取温度，研究了亚临界水在萝卜、香瓜、苹果和白菜等蔬果基质中对异稻瘟净等12种农药的萃取效果，用气相色谱-串联质谱法(GC-MS/MS)进行检测。方法的定量下限为0.025~0.050 mg/kg，当加标量为0.05 mg/kg时，12种农药的回收率为62%~110%，相对标准偏差(RSD)小于10%。

Abstract

Using the characteristics that subcritical water can quantitatively extract a wide variety of organic solutes from different matrixes,12 pesticides were extracted from radish,cantaloupe,apple and cabbage by subcritical water extraction combined with solid phase adsorption in accelerated solvent extractor after adding C18 padding in the cell.The extraction conditions were optimized.The determination of 12 pesticides was performed by gas chromatography-tandem mass spectrometry(GC-MS/MS).The result indicated that the limits of quantitation were in the range of 0.025-0.050 mg/kg,and the recoveries of 12 pesticides from fruits and vegetables samples at spiked level of 0.05 mg/kg were in the range of 62%-110% with RSDs less than 10%.

关键词

亚临界水萃取农药残留固相吸附

Keywords

subcritical water extractionpesticide residuessolid phase adsorption

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Related Author

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Related Institution

College of Geography and Environmental Science，Northwest Normal University

Technology Center of Lanzhou Customs

College of Food Science and Engineering，Gansu Agricultural University

Chinese Academy of Inspection and Quarantine

Key Laboratory of Pesticide and Veterinary Drug Monitoring for State Market Regulation/Lanzhou Institute for Food and Drug Control

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