| 气相色谱法测定芒果中咪鲜胺残留 |
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| 引用本文： | 尹桂豪,韩红新,袁宏球.气相色谱法测定芒果中咪鲜胺残留[J].华南热带农业大学学报,2007,13(3):15-17. |
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| 作者姓名： | 尹桂豪 韩红新 袁宏球 |
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| 作者单位： | 中国热带农业科学院分析测试中心 海口571101 |
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| 基金项目： | 中国热带农业科学院院本级科研院所专项基金(2007-YBJ-37)。 |
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| 摘 要： | 建立咪鲜胺在芒果中残留量的毛细管气相色谱检测方法。样品采用丙酮提取后,用二氯甲烷萃取,在高温下与吡啶盐酸盐发生水解反应,再用石油醚萃取,浓硫酸净化,用电子捕获检测器进行测定。结果表明,该方法的最低检出限为0.005mg/kg,不同水平的添加回收率为83.3%～103%,RSD为3.9%～5.0%。方法操作简便,达到了残留分析的要求。
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| 关 键 词： | 芒果 咪鲜胺 气相色谱 农药残留 |
Gas Chromatogarph Determination of Prochloraz in Mangoes |
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| Yin Guihao,Han Hongxin,Yuan Hongqiu.Gas Chromatogarph Determination of Prochloraz in Mangoes[J].Journal of South China University of Tropical Agriculture,2007,13(3):15-17. |
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| Authors: | Yin Guihao Han Hongxin Yuan Hongqiu |
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| Institution: | Analyzing and Testing Center, CATAS, Haikou, Hainan, 571101 |
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| Abstract: | A capillary gas chromatographic method (GC) was established to determine prochloraz residues in mangoes. The sample was extracted with acetone,partitioned with dichloromethane and hydrolyzed with pyridine-hydrochloric acid under high temperature. Then the hydrolyzed solution was extracted with petroleum ether and cleaned with sulfuric acid. Prochloraz was determined by a gas chromatograph with ECD detector. The lower detection limit for prochloraz was 0.005mg/kg. The different level recovery was 83.3%-103%. RSD was 3.9%-5.0%. The method is convenient,easy to operate and can satisfy the requirement of residual analysis. |
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| Keywords: | mangoes prochloraz GC pesticide residues |
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