| 气相色谱法检测平菇中9种农药残留分析 |
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| 引用本文： | 王洁莲.气相色谱法检测平菇中9种农药残留分析[J].农学学报,2017,7(3):80-85. |
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| 作者姓名： | 王洁莲 |
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| 作者单位： | 1. 山西省农产品质量安全检验监测中心,太原,030025;2. 山西省运城市盐湖区种子管理站,山西运城,044000 |
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| 基金项目： | 山西省科技攻关项目“农药残留与农田鼠害防治技术研究”(20130310011-4)。 |
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| 摘 要： | 为解决食用菌中的农药残留检测问题,以基地生产的平菇样品为实验材料,采用固相萃取方法对平菇中白菌清、三唑酮等9种农药残留的检测方法进行研究,用石墨碳黑氨基柱净化样品,利用气相色谱作为检测手段,ECD检测器进行定性定量分析。研究表明,平菇中9种农药的含量重复性实验相对标准偏差为2.05%~6.35%,检出限为0.0003~0.005 mg/kg,定量限为0.0009~0.02 mg/kg。9种农药在0.05~2.0 mg/L范围内线性关系良好,r值均大于0.990。此方法检测平菇中9种农药残留分析准确、可行。
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| 关 键 词： | 农药残留 平菇 气相色谱法 |
| 收稿时间： | 2016/8/29 0:00:00 |
| 修稿时间： | 2016/12/8 0:00:00 |
Determination of 9 Pesticide Residues in Oyster Mushroom by Gas Chromatography |
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| Wang Jielian,Niu Wei,Sun Jing.Determination of 9 Pesticide Residues in Oyster Mushroom by Gas Chromatography[J].Journal of Agriculture,2017,7(3):80-85. |
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| Authors: | Wang Jielian Niu Wei Sun Jing |
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| Abstract: | To detect pesticide residues in edible mushrooms, oyster mushroom samples were taken as the experiment material. The solid-phase extraction method was adopted to study the detection methods for 9 pesticide residues such as chlorothalonil and triadimefon in oyster mushrooms. The samples were extracted with acetonitrile, further cleaned-up by graphite carbon amino columns and detected by gas chromatography with electron capture detector (GC- ECD). The result showed that the relative standard deviations of nine pesticides content were 2.05%-6.35% under this method, the limits of detection were 0.0003-0.005 mg/kg and the limits of quantification were 0.0009-0.02 mg/kg. The nine pesticides had a good linearity from 0.05 to 2.0 mg/L and the r values were greater than 0.990. The method is feasible and accurate for determining nine residues in oyster mushroom. |
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| Keywords: | Pesticide Residues Oyster Mushroom Gas Chromatography |
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