| Carb／PSA固相萃取净化一气相色谱质谱法测定茶叶中的34种农药成分 |
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| 引用本文： | 陈健航,叶瑜霏,张少丰,梁志刚,尹小菲,吴春梅.Carb／PSA固相萃取净化一气相色谱质谱法测定茶叶中的34种农药成分[J].广州食品工业科技,2012(8):1080-1083,1068. |
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| 作者姓名： | 陈健航 叶瑜霏 张少丰 梁志刚 尹小菲 吴春梅 |
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| 作者单位： | 东莞市农产品质量安全监督检测所,广东东莞523086 |
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| 摘 要： | 建立了茶叶中34种农药多残留的气相色谱质谱分析方法。茶叶样品用乙腈一次性提取后，经Carb／PsA固相萃取小柱净化，气相色谱质谱定性定量。添加回收试验的结果表明：34种农药的平均回收率70％124％，相对标准偏差为0．2%-14．9％。方法的检出限为0．1-25．0μg／kg。该方法的灵敏度、准确度和精密度均符合农药残留测定的技术要求。
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| 关 键 词： | 固相萃取 气相色谱质谱法 农药残留 茶叶 |
Detemination of 34 Pesiticide Residues in Tea by GC-MS with Carb/PSA Solid-phase Extraction |
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| Authors: | CHEN Jian-hang YE Yu-fei ZHANG Shao-feng LIANG Zhi-gang YIN Xiao-fei WU Chun-mei |
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| Affiliation: | (Dongguan Supervision and Test Institution of Agricultural Products Quality and Safety, Dongguan 523086, China) |
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| Abstract: | A multiresidue analytical method was developed for the determination of 34 pesticide residues in tea using gas chromatography-mass spectrometry. The samples were extracted by acetonitrile and cleaned up by Carb/PSA solid phase extraetion（SPE） columns. The results of the spiked level test showed that the average recovery of 34 pesticides ranged from 70% to 124% with relative standard deviations （RSDs） of 0.2%-14.9%. The limits of detection were 0.1-25.0μg/kg. The sensitivity and accuracy meet the requirements of the multiple pesticide residue analysis. |
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| Keywords: | SPE gas chromatography-mass spectrometry pesticide recidues tea |
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