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| 噻虫嗪的挥发特性研究 | |
| 引用本文： | 段亚玲,王睿,席培宇,李景壮,包娜,赵亚洲,谭红,陈蓓蓓.噻虫嗪的挥发特性研究[J].贵州科学,2014,32(6):69-74. |
| 作者姓名： | 段亚玲 王睿 席培宇 李景壮 包娜 赵亚洲 谭红 陈蓓蓓 |
| 作者单位： | 1. 贵州省分析测试研究院,贵阳,550002 2. 贵州省分析测试研究院,贵阳550002;贵州科学院生物研究所,550009 3. 贵州省分析测试研究院,贵阳550002;贵州大学化学与化工学院,贵阳550001 |
| 基金项目： | 黔科院J合字[2012]15号，化学品生态毒理测试与风险评估技术合作研究，黔科合字(2008) 3050号;遵义县农田重金属分布规律及其GIS管理模型的示范研究 |
| 摘 要： | 参照《化学农药环境安全评价试验准则》的要求,采用室内模拟的试验方法研究噻虫嗪在不同介质中的挥发特性,为该药的环境风险提供数据支持。结果表明：在25±1℃,气体流速为500 ml/min的条件下,噻虫嗪在3种介质中均难挥发,其在空气中、水中及其土壤表面的挥发率分别为〈0.04%、〈0.07%、〈0.05%,挥发性试验的平均回收率分别为101.0%、95.4%、96.2%,满足回收率试验不低于70%的试验有效性要求,从挥发性的角度来说,噻虫嗪对人畜相对较安全。 |
| 关 键 词： | 噻虫嗪 挥发性 |
Study on the Volatilization of Thiamethoxam |
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| Institution: | DUAN Ya-ling,WANG Rui,XI Pei-yu,LI Jing-zhuang,BAO Na,ZHAO Ya-zhou,TAN Hong,CHEN Beibei( 1Guizhou Academy of Analysis and Testing, Guiyang, Guizhou 550002, China ; 2 Guizhou Institute of Biology, Guiyang , Guizhou 550009, China ;3 College of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550009, China) |
| Abstract: | With reference to the requirements of criterion for chemical pesticide environmental safety assessment,the volatility of thiamethoxam in different media was studied in laboratory to provide data support for its environmental risk.The results showed that three media of thiamethoxam were less volatile under conditions of the gas flow rate of 500 ml /min at 25 ± 1 ℃.The volatilization rate of thiamethoxam was 〈0.04 %, 〈0.07 % and 〈0.05 % in the air,water and soil surface respectively.The average recovery of volatile test was 101.0 %,95.4 % and 96.2 % respectively,which met the test requirement of recovery rate not less than 70 %.Thiamethoxam would be relatively safe to human beings and animals from the perspective of volatility. |
| Keywords: | thiamethoxam volatilization |
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