| 气质联用检测蔬菜中菊酯类农药残留量研究 |
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| 引用本文： | 张静,闫实. 气质联用检测蔬菜中菊酯类农药残留量研究[J]. 安徽农业科学, 2011, 39(30): 18596-18598 |
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| 作者姓名： | 张静 闫实 |
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| 作者单位： | 1. 沈阳化工大学分析测试中心,辽宁沈阳,110142
2. 辽宁省农业环境保护监测站,辽宁沈阳,110034 |
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| 摘 要： | [目的]探讨采用气质联用检测蔬菜中菊酯类农药的残留量。[方法]以常见的4种蔬菜为材料,应用气相色谱/质谱联用方法,研究了色谱柱极性与扫描方式对测定蔬菜中5种菊酯类农药残留量的影响。[结果]使用较强极性的毛细管柱（如DB-17MS）可降低蔬菜中菊酯类农药的检出限。在确定每种菊酯类农药特征离子的基础上,采用选择离子监控扫描（SIM）,可显著降低蔬菜中菊酯类农药的检出限,4种蔬菜中5种菊酯类农药检出限范围在0.002 53～0.191 00 mg/kg。SIM扫描方式的检出限较全扫描方式降低了5.3～33.4倍。[结论]为提高采用GC/MS测定某些不稳定菊酯类农药的灵敏度提供了参考。
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| 关 键 词： | 菊酯类农药 特征离子 气质联用 检出限 |
Determination of Five Kinds of Deltamethrin Pesticides Residue in Vegetables by GC/MS |
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| ZHANG Jing et al. Determination of Five Kinds of Deltamethrin Pesticides Residue in Vegetables by GC/MS[J]. Journal of Anhui Agricultural Sciences, 2011, 39(30): 18596-18598 |
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| Authors: | ZHANG Jing et al |
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| Affiliation: | ZHANG Jing et al(Shenyang University of Chemical Technology,Shenyang,Liaoning 110142) |
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| Abstract: | [Objective] The aim was to determine five kinds of deltamethrin pesticides residues in vegetables by GC/MS.[Method] The effect of capillary column's polarity and scanning way on the determination of deltamethrin pesticides residue was investigated by gas chromatography/mass spectrometry.[Result] The appling capillary column with stronger polarity(such as DB-17MS) could decrease the limit of determination.On the basis of selection of characteristic ions for each pesticide,appling SIM(selected ion monitoring)... |
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| Keywords: | Deltamethrin pesticides Characteristic ion GC/MS Limit of determination |
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