Mansour M, Feicht E A, Behechti A, Schramm K W, Kettrup A
GSF-National Research Center for Environment and Health, Institute of Ecological Chemistry, Neuherberg, Federal Republic of Germany.
Chemosphere. 1999 Aug;39(4):575-85. doi: 10.1016/s0045-6535(99)00123-x.
The photolysis of selected pesticides in aqueous solutions has been investigated. The photolysis produced different intermediate substances, which were also found to be soil and microbial degradation products. The phototransformation in the presence of TiO2 and humic substances leads to a disappearance of these compounds. The reaction rate is dependent on the semiconductor oxide and concentration. Photoproducts were isolated and characterized by different spectroscopic methods. Results from this study indicate that degradation products of isoproturon are more toxic on Daphnia magna than on the parent compound.
已对选定农药在水溶液中的光解进行了研究。光解产生了不同的中间物质，这些物质也被发现是土壤和微生物降解产物。在二氧化钛和腐殖质存在下的光转化导致这些化合物消失。反应速率取决于半导体氧化物和浓度。通过不同的光谱方法分离并表征了光产物。本研究结果表明，异丙隆的降解产物对大型溞的毒性比对母体化合物的毒性更大。
