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| 烟草及土壤中精甲霜灵残留分析方法和降解规律研究 | |
| 引用本文： | 曹爱华,李义强,孙惠青,徐金丽,郑晓,杨志兰,薛良斌,李春.烟草及土壤中精甲霜灵残留分析方法和降解规律研究[J].中国烟草科学,2007,28(3):35-37,42. |
| 作者姓名： | 曹爱华 李义强 孙惠青 徐金丽 郑晓 杨志兰 薛良斌 李春 |
| 作者单位： | 1. 中国烟草总公司青州烟草研究所,青岛266101 2. 山东日照烟草有限公司五莲分公司,山东,五莲,262300 3. 山东淄博烟草有限公司,山东淄博255030 |
| 摘 要： | 对烟草和土壤中精甲霜灵(Metalaxyl-M)采用丙酮/甲醇(1:1,v/v)提取,弗罗里硅土加活性炭混合层析柱净化,液相色谱紫外检测器(UV)测定。试验结果表明,鲜烟叶、土壤中精甲霜灵回收率分别为92.14%～97.12%、93.36%～96.46%;相对标准偏差分别为3.2%～4.8%、2.2%～2.9%。精甲霜灵在烟叶中的消解较快,半衰期为1.2～1.5d;而在土壤中相对较慢,半衰期为6.39～12.77d。 |
| 关 键 词： | 烟草 精甲霜灵 高效液相色谱 残留分析 |
| 文章编号： | 1007-5119（2007）03-0035-03 |
| 修稿时间： | 2007-01-17 |
Residue Analysis Methods and Degradation Regularity of Metalaxyl-M in Tobacco Leaves and Soils |
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| CAO Aihua,LI Yiqiang,SUN Huiqing,XU Jinli,ZHENG Xiao,YANG Zhilan,XUE Liangbin,LI Chun.Residue Analysis Methods and Degradation Regularity of Metalaxyl-M in Tobacco Leaves and Soils[J].Chinese Tobacco Science,2007,28(3):35-37,42. | |
| Authors: | CAO Aihua LI Yiqiang SUN Huiqing XU Jinli ZHENG Xiao YANG Zhilan XUE Liangbin LI Chun |
| Affiliation: | 1.Qingzhou Tobacco Research Institute, China National Tobacco Corporation, Qingdao 266101, China; 2.Wulian Branch, Shandong Rizhao Tobacco Company, Shandong Wulian 262300, China; 3.Zibo Tobacco Company Ltd., Shandong Zibo 255030, China |
| Abstract: | Metalaxyl-M residues in tobacco leaves and soil were analyzed by high performance liquid chromatography. In this method residues were extracted with acetone and methyl alcohol, cleaned up on a column of florisil and activated carbon mixtures, and determined with an ultraviolet (UV) detector. Recoveries were 92.14%~97.12% for fresh leaves and 93.36%~96.46% for soisl respectively, and relative standard deviations (RSDs) were 3.2%~4.8% and 2.2%~2.9% respectively. The degradation rates of metalaxyl-M were faster in tobacco leaves than in soils, and the degradation half-life times were 1.2~1.5 days in tobacco leaves and 6.39~12.77 days in soils. |
| Keywords: | tobacco metalaxyl-M high performance liquid chromatography residue analysis |
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