%0 Journal Article
%T Genotoxic Characterization of PCP Solution during Its Photoelectrocatalysis Process with SOS/umu Assay<br>用SOS/umu测试评价光电催化降解五氯酚过程的遗传毒性特征
%A LIU Wei
%A CUI Qing
%A QUAN Xie
%A MA Mei
%A CHEN Shuo
%A <br>刘薇
%A 崔青
%A 全燮
%A 马梅
%A 陈硕
%J 生态毒理学报
%D 2006
%I 
%X SOS/umu assay employing Salmonella typhimurium TA1535/pSK1002 was conducted to evaluate the genotoxic and cytotoxic characteristics of PCP solution during its photoeletrocatalysis process. As a comparison,the direct photolysis and photocatalysis process were also studied. During the photoelectrocatalytic process of PCP under given conditions,the cytotoxicity of the reaction products decreased steadily. The reaction products of photoelectrocatalysis were less cytotoxic than that of direct photolysis and photocatalysis after metabolic activation. The samples photoelectrocatalized for 15 -45min caused genotoxic responses with the addition of S9-enzyme fraction. The samples photoelectrocatalized for more than 60min showed no genotoxic potency, indicating the indirect genotoxic intermediates formed could be removed in this process. For the photolytic and photocatalytic process,the samples irradiated for 120min still exhibited genotoxicity. These results suggested that photoelectrocatalysis exhibited its priority over the direct photolysis and photocatalysis considering their environmental safety. Moreover, SOS/umu assay was suitable to evaluate the genotoxic characteristics of the photoelectrocatalysis process due to its simplicity and sensitivity. Hence it could be employed as part of the assessment system for the environmental safety of photoelectrocatalysis process.
%K photoelectrocatalysis
%K pentachlorophenol
%K SOS/umu assay
%K genotoxicity
%K environmental safety<br>光电催化
%K 五氯酚
%K SOS/umu测试
%K 遗传毒性
%K 环境安全性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=BEC1F4700DD66C14D137590A0896A0AD&jid=B98D390DF92C35E6DD1987675E4EE86E&aid=3F0CE5EECD3550D8&yid=37904DC365DD7266&vid=CA4FD0336C81A37A&iid=0B39A22176CE99FB&sid=7CE3F1F20DE6B307&eid=BA79719BCA7341D5&journal_id=1673-5897&journal_name=生态毒理学报&referenced_num=3&reference_num=15