| QuEChERS-在线凝胶渗透色谱-气相色谱/质谱法同时测定蔬菜中49种常见农药残留 |
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| 引用本文： | 胡雪郢,桂勇,薛丰. QuEChERS-在线凝胶渗透色谱-气相色谱/质谱法同时测定蔬菜中49种常见农药残留[J]. 现代预防医学, 2016, 0(2): 327-332 |
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| 作者姓名： | 胡雪郢 桂勇 薛丰 |
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| 作者单位： | 重庆市渝中区疾病预防控制中心，重庆 400010 |
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| 摘 要： | 摘要:目的 建立蔬菜中49种农药的QuEChERS-在线凝胶渗透色谱-气相色谱/质谱（GPC- GC/MS）快速检测方法。方法 样品经QuEChERS方法处理，乙腈提取，离心后，上清液通过基质分散固相萃取净化；净化液经氮吹浓缩后，在线GPC-GC/ MS 定量分析。结果 49种待测农药在0.4～16.0 μg范围内时相关系数在0.9912～0.9999之间；3种样品（白菜、南瓜和胡萝卜）的加标回收率范围为66.6%～120.7%，相对标准偏差（RSD）均小于15.0%（n＝6）。结论 本法简单快速、灵敏、准确，具有良好的回收率和稳定性，适用于蔬菜中多种农药残留的测定。
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| 关 键 词： | 关键词:农药残留 在线凝胶渗透色谱-气相色谱/质谱（GPC-GC/MS） |
Simultaneous determination of 49 common pesticide residues in vegetables by QuEChERS-online gel permeation chromatography-GC/MS |
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| HU Xue-ying,GUI Yong,XUE Feng. Simultaneous determination of 49 common pesticide residues in vegetables by QuEChERS-online gel permeation chromatography-GC/MS[J]. Modern Preventive Medicine, 2016, 0(2): 327-332 |
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| Authors: | HU Xue-ying GUI Yong XUE Feng |
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| Affiliation: | Yuzhong Center for Disease Control and Prevention, Chongqing 400010, China |
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| Abstract: | Abstract: Objective The study was conducted to establish a method for rapid detection of 49 common pesticide residues in vegetables by QuEChERS-online gel permeation chromatography-gas chromatography/mass spectrometry (GPC-GC/MS). Methods Vegetable samples were treated by QuEChERS, extracted by acetonitrile, and centrifuged. The supernatant was purified by solid-phase matrix dispersion, and concentrated under N2. The resulting samples were quantitatively analyzed by online GPC-GC/MS. Results The correlation coefficients ranged from 0.9912 to 0.9999 when the 49 pesticides were within 0.4-16.0 μg. Recovery rate of three samples (cabbage, pumpkin, and carrot) ranged between 66.6% and 120.7%, with the relative standard deviation (RSD) less than 15.0% (n=6). Conclusion The method is fast, sensitive, accurate, and high in recovery rate and stability; and is thus suitable for determination of various pesticide residues in vegetables. |
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| Keywords: | Keywords: Pesticide residues Online gel permeation chromatography-gas chromatography/mass spectrometry (GPC-GC/MS) |
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