恶唑菌酮在液相中的光化学降解研究  

Photodegradation of famoxadone in various solvents

作　　者：姚曦[1] 岳永德[1] 汤锋[1,2,3] 操海群[2,3] 

机构地区：[1]国际竹藤网络中心,北京100102 [2]安徽省农产品安全重点实验室,合肥230036 [3]安徽农业大学资源与环境学院,合肥230036

出　　处：《安徽农业大学学报》2008年第4期555-558,共4页Journal of Anhui Agricultural University

基　　金：国家自然科学基金(30370948)资助

摘　　要：研究恶唑菌酮在甲醇、乙腈、异丙醇及水溶液中,以及不同光源下和不同pH缓冲溶液中的光化学降解。结果表明,在太阳光下,恶唑菌酮水溶液光解缓慢,半衰期为51.7 h;在甲醇、乙腈、异丙醇溶液中恶唑菌酮降解效应显著,高压汞灯下的半衰期分别为1.70、1.36和1.83 min;此外,溶液体系pH值越高,光解越迅速。The photodegradation of famoxadone in various solvents under two different light sources was studied.The direct photodegradation rate of famoxadone in aqueous solution by sunlight was slow,the half-life was 51.7 h,while it was quickly photodegraded under HPML irradiation.In methanol,acetonitrile,isopropyl alcohol,the half-lives were 1.70,1.36 and 1.83 min,respectively.The photolytic rate of famoxadone increased with the increase of solution pH.

关 键 词：恶唑菌酮 光降解 有机溶剂 PH 

分 类 号：X132[环境科学与工程—环境科学] S481.8[农业科学—农药学]