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| pH对氟磺胺草醚水解的影响 | |
| 引用本文： | 朱聪,开美玲,丁先锋,史建君,徐步进,郭江峰. pH对氟磺胺草醚水解的影响[J]. 农业环境科学学报, 2007, 26(Z1) |
| 作者姓名： | 朱聪 开美玲 丁先锋 史建君 徐步进 郭江峰 |
| 作者单位： | 1. 浙江理工大学生物工程研究所,浙江,杭州,310018 2. 浙江大学原子核农业科学研究所,浙江,杭州,310029 3. 浙江理工大学理学院,浙江,杭州,310018 |
| 摘 要： | 采用试验分析方法研究了氟磺胺草醚在不同pH缓冲溶液中的水解作用。结果表明,随着溶液pH值的增大,氟磺胺草醚的水解反应逐渐减慢,速率常数K减小,半衰期相应地增大。氟磺胺草醚在pH为5.0、6.0、7.0、8.0、9.0的缓冲液中的水解半衰期分别为105.74、157.41、183.26、215.16、247.40 d。 |
| 关 键 词： | 氟磺胺草醚 水解 半衰期 水生生态系统 |
Hydrolysis of Herbicide Fomesafen in Buffer Solution at Various pH Values |
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| ZHU Cong,KAI Mei-ling,DING Xian-feng,SHI Jian-jun,XU Bu-jin,GUO Jiang-feng. Hydrolysis of Herbicide Fomesafen in Buffer Solution at Various pH Values[J]. Journal of Agro-Environment Science( J. Agro-Environ. Sci.), 2007, 26(Z1) | |
| Authors: | ZHU Cong KAI Mei-ling DING Xian-feng SHI Jian-jun XU Bu-jin GUO Jiang-feng |
| Abstract: | Hydrolysis of fomesafen in buffer solutions at different pH values was examined in the present study.It was showed that the hydrolysis rate of fomesafen decreased gradually with increasing pH values.Rate constant K decreased,correspondingly,while half-life of fomesafen increased.The half-lives of fomesafen in buffer solutions were 105.74 d for pH 5.0;157.41 d for pH 6.0;183.26 d for pH 7.0;215.16 d for pH 8.0;and 247.40 d for pH 9.0,respectively. |
| Keywords: | fomesafen hydrolysis half-life aquatic ecosystem |
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