| 烟叶及土壤中菌核净残留分析方法及消解规律 |
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| 引用本文： | 张亚,何可佳,刘薇,薛正杰.烟叶及土壤中菌核净残留分析方法及消解规律[J].农药,2009,48(9). |
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| 作者姓名： | 张亚 何可佳 刘薇 薛正杰 |
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| 作者单位： | 湖南农业大学,生物安全科技学院,长沙,410128 |
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| 基金项目： | 湖南省烟叶专卖局项目 |
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| 摘 要： | 提取样品中的菌核净,硅胶层析柱净化,气相色谱配电子捕获检测器(ECD)测定.结果表明:鲜烟叶、土壤中菌核净平均回收率分别为96.80%～98.96%、93.87%～100.78%;相对标准偏差分别为7.77%～8.22%、5.48%～6.69%.菌核净在鲜烟叶中的消解较快,半衰期为7.75 d;在土壤中相对较慢,半衰期为15.71 d.
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| 关 键 词： | 烟叶 土壤 菌核净 气相色谱 残留分析 消解规律 |
Residue Analysis Methods and Degradation Regularity of Dimethachlon in Tobacco Leaves and Soils |
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| ZHANG Ya,HE Ke-jia,LIU Wei,XUE Zheng-jie.Residue Analysis Methods and Degradation Regularity of Dimethachlon in Tobacco Leaves and Soils[J].Pesticides,2009,48(9). |
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| Authors: | ZHANG Ya HE Ke-jia LIU Wei XUE Zheng-jie |
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| Affiliation: | college of Bio-safety science and technology;hunan Agricultural University;changsha 410128;china |
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| Abstract: | the dimethachlon residues in tobacco leaves and soil were extracted with acetone, cleaned up on a column of silica, and determined with an electron capture detector (ecD). the result showed that recoveries were 96.80-98.96% for fresh leaves and 93.87-100.78% for soil respectively, and relative standard deviations (rsD) were 7.77-8.22% and 5.48-6.69% respectively. the degradation rates of dimethachlon were faster in tobacco leaves than in soils, and the degradation half-life times was 7.75 days in tobacco le... |
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| Keywords: | tobacco leaves soil dimethachlon gas chromatography residue analysis degradation regularity |
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