| 草甘膦在水-土两相中的吸附行为研究 |
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| 引用本文： | 李岩,王红斌.草甘膦在水-土两相中的吸附行为研究[J].云南民族学院学报(自然科学版),2013(6):399-402. |
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| 作者姓名： | 李岩 王红斌 |
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| 作者单位： | [1]大连重工起重集团有限公司检测／校准实验室,辽宁大连116033 [2]云南民族大学民族药资源化学国家民委-教育部重点实验室,云南昆明650500 |
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| 基金项目： | 云南民族大学民族药资源化学国家民委一教育部重点实验室开放基金（MJY07006）. |
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| 摘 要： | 研究了有机磷类除草剂草甘膦在4种土壤固-液相间的吸附与土壤组分作用的定量相关性.测定了草甘膦在4种土壤中的吸附等温线.观察了pH对吸附的影响.结果表明：草甘膦在4种土壤中吸附过程均符合一级动力学规律，吸附等温线符合Freundlich 平衡方程，吸附常数为25.82 ~69.07；pH 3~10范围内，随着pH的增加，草甘膦在土壤中的吸附量降低.
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| 关 键 词： | 草甘膦 吸附 土壤 |
Adsorption behaviors of herbicide glyphosate on soil |
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| LI Yan,WANG Hong-bin.Adsorption behaviors of herbicide glyphosate on soil[J].Journal of Yunnan University of The Nationalities(Natural Sciences Edition),2013(6):399-402. |
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| Authors: | LI Yan WANG Hong-bin |
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| Institution: | 1. Testing and Calibration Laboratory of the DHHI Group CO. Ltd, Dalian 116033 ,China; 2. Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan University of Nationalities, Kunming 650500, China) |
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| Abstract: | Adsorption isotherms of bentazon in four selected soils were measured. The adsorption behaviors of herbicide glyphosate on four kinds of soil were studied. The influence of pH value on adsorption was discussed. It was shown that the adsorption dynamic process of glyphoste on four soils all was first order reaction, and the adsorption accords the langmuir model, adsorption coeffieients Kf ranged from 25.82 to 69.07.The adsorption percentage of glyphosate decreased with pH value gradually decrease（3-10）. |
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| Keywords: | glyphosate adsorption soil |
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