| 腐殖质和膨润土对有机磷农药吸附的色谱测定法 |
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| 引用本文： | 朱丽君,张维,胡辉,张金池. 腐殖质和膨润土对有机磷农药吸附的色谱测定法[J]. 南京林业大学学报(自然科学版), 2011, 0(5): 143-146. DOI: 10.3969/j.issn.1000-2006.2011.05.032 |
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| 作者姓名： | 朱丽君 张维 胡辉 张金池 |
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| 作者单位： | 1. 南京林业大学理学院,江苏,南京,210037
2. 南京林业大学森林资源与环境学院,江苏,南京,210037 |
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| 基金项目： | 国家林业局“948”项目(2008-4-40); 江苏省自然科学基金重点项目(BK2001208) |
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| 摘 要： | 膨润土和腐殖质是土壤的重要组成成分，拥有复杂的结构和多种功能基团，对农药具有强烈的吸附作用。笔者采用AE.SE-54毛细管气相色谱法，以正十四烷为内标，对毒死蜱和三唑磷2种有效成分进行分析和定量；采用平衡法研究膨润土和腐殖质对毒死蜱和三唑磷的吸附规律。结果表明，方法标准偏差在015~061之间，变异系数在098~151 %之间。毒死蜱的回收率为8933 %～124 %，检出限为114×10-11 g/g;三唑磷的回收率为97 %～116 %，检出限为139×10-11 g/g。毒死蜱和三唑磷在腐殖质上的吸附均大于膨润土，并可用Freundlich模型和Langmuir模型拟合，膨润土对2种农药的等温吸附只可用Langmuir模型拟合。
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| 关 键 词： | 毒死蜱 三唑磷 腐殖质 膨润土 吸附 |
Adsorption of organophosphorus pesticides on bentonite and humus by Chromatography |
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| ZHU Lijun,ZHANG Wei,HU Hui,ZHANG Jinchi. Adsorption of organophosphorus pesticides on bentonite and humus by Chromatography[J]. Journal of Nanjing Forestry University(Natural Sciences ), 2011, 0(5): 143-146. DOI: 10.3969/j.issn.1000-2006.2011.05.032 |
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| Authors: | ZHU Lijun ZHANG Wei HU Hui ZHANG Jinchi |
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| Affiliation: | ZHU Lijun1,ZHANG Wei2,HU Hui2,ZHANG Jinchi2(1.College of Science,Nanjing Forestry University,Nanjing 210037,China,2.College of Forest Resources and Environment,China) |
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| Abstract: | Bentonite and humus are very important parts in soil.They can adsorb pesticides intensively because of their complicated structure and many functional groups.Chlorpyrifos and triazophos were quantitatively analyzed by internal standard method using AE.SE-54 capillary column and n-tetradecane as the internal standard substance.The adsorption of chlorpyrifos and triazophos on bentonite and humus was studied by using the equilibrium oscillometry.The results showed that standard deviations were between 0.15 and... |
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| Keywords: | chlorpyrifos triazophos humus bentonite adsorption |
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