异恶草酮水解动力学研究  

Hydrolysis Kinetics of Clomazone

作　　者：何文[1] 郭正元[1] 贺仲兵[1] 

机构地区：[1]湖南农业大学环境科学系,长沙410128

出　　处：《农业环境科学学报》2005年第z1期277-279,共3页Journal of Agro-Environment Science

摘　　要：采用HP-1100液相色谱和室内模拟的方法,研究了异恶草酮在不同温度和pH值条件下的水解动力学情况以及在三种实际环境水样中的水解情况。结果表明,不同的pH值对异恶草酮的水解速率影响较小,异恶草酮水解速率随温度升高而加快,而且异恶草酮在环境水样中的半衰期略短。This study investigated the hydrolysis kinetics of clomazone in pH 5,pH 7and pH 9 buffered aqueous media at 25℃,and the hydrolysis kinetics of clomazone in pH 7 buffered aqueous media at 15,25,35 and 45 ℃.At 25℃,the hydrolysis rate constant k at pH 5,pH 7and pH 9 were 0.0142、0.0112、0.0175,respectively,which indicated the relative stability in a neutral medium. At pH 7,the hydrolysis rate constant k was increased at the elevated temperature.

关 键 词：异恶草酮 水解 温度 PH 

分 类 号：X592[环境科学与工程—环境工程]