| 土壤样品中痕量丁草胺的分析方法 |
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| 引用本文： | 丁娜,刘忠珍,徐建明. 土壤样品中痕量丁草胺的分析方法[J]. 土壤通报, 2011, 0(1) |
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| 作者姓名： | 丁娜 刘忠珍 徐建明 |
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| 作者单位： | 浙江大学土水资源与环境研究所浙江省亚热带土壤与植物营养重点实验室; |
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| 基金项目： | 国家自然科学基金(20977077); 浙江省科技计划项目(2009C33119,2008C13024-3)资助 |
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| 摘 要： | 本研究完善了土壤中除草剂丁草胺残留的分析测试方法。在实验室条件下,利用超声提取、弗罗里硅土柱(湿法填柱和干法填柱)进行净化和分离、毛细管气相色谱分析测试,进一步优化了弗罗里硅土柱净化分离丁草胺的条件。土壤中丁草胺的平均回收率为97.46%,检出限为0.002mgkg-1,变异系数小于10%。本方法灵敏度高、重复性好、可排除有机污染物对微量丁草胺残留物测定的干扰,同时减少了有机试剂的用量,适用于土壤样品中痕量丁草胺的分析测试。
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| 关 键 词： | 丁草胺 湿法填柱 干法填柱 气相色谱 |
The Determination Method for Butachlor in Soils |
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| DING Na,LIU Zhong-zhen,XU Jian-ming. The Determination Method for Butachlor in Soils[J]. Chinese Journal of Soil Science, 2011, 0(1) |
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| Authors: | DING Na LIU Zhong-zhen XU Jian-ming |
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| Affiliation: | DING Na,LIU Zhong-zhen,XU Jian-ming(Institute of Soil Water Resources and Environmental Science,Zhejiang Provincial Key Laboratory of Subtropical Soil and Plaht Nutrition,Zhejiang University,Hangzhou 310029,China) |
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| Abstract: | In this study,the determination method for butachlor residues in soils was improved.Under laboratory conditions,ultrasonic extraction,florisil column(wet and dry filled column) for purification and separation were used.Finally,the samples were analyzed by a gas chromatography(GC) equipped with a capillary column.Average recovery of butachlor in soils was 97.46%,detective limit was 0.002 mg kg-1,and RSD was less than 10%.This method had accurate qualitative and quantitative identification and excluded interf... |
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| Keywords: | Butachlor Wet filling column Dry filling column GC |
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