水果中菊酯类农药残留的快速检测分析
目的 建立水果中菊酯类农药残留的气相色谱法快速检测方法, 为今后检验工作提供可靠参考依据。方法 所选取的水果样品经粉碎、乙腈提取、CleanertPC/NH2 SPE 柱净化、氮吹仪浓缩后, 进入GC分析, 外标法定量。结果 4种菊酯类农药在0.008~0.4 μg/mL浓度范围内具有良好的线性响应, 分离效果好, 相关系数在0.99903到0.99993之间, 添加量为0.002 mg/kg时, 加标回收率在91.43%~100.94%之间, 相对标准偏差在5.45%~8.20%之间, 检出低限为0.002 mg/kg。结论 该方法简便、快速、具有较高的精密度和准确度。
Objective A method for determination of pyrethriod pesticide residues in fruits was developed by gas chromatography (GC) to provide a reliable test for the future work. Methods After homogenization of the fruit samples, the pesticide residues were extracted by acetoneitrile, cleaned up by a CleanertPC/NH2 SPE column and then determined by GC using the external standard method. Results The calibration curve showed a good linearity in the range of 0.008~0.4 μg/mL, and the correlation coefficient was 0.99903~0.99993 for herbicides. The recovery rate of labeled samples was 91.43%~100.94%, with the relative standard deviations were 5.45%~8.20%, and the detection limit was 0.002 mg/kg. Conclusion This method is simple, rapid, and has high precision and accuracy.
标题：水果中菊酯类农药残留的快速检测分析
英文标题：Fast determination of pyrethriod pesticide residues in fruits
作者：
王翠芬 保定出入境检验检疫局
高雪 保定出入境检验检疫局
刘萍 保定出入境检验检疫局
齐雅薇 保定出入境检验检疫局
刘晓慧 保定出入境检验检疫局
颜红 保定出入境检验检疫局
中文关键词:气相色谱法,水果,菊酯,农药残留,
英文关键词:gas chromatography,fruit,pyrethroid,pesticide residues,
发表日期：2014-05-15
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