两性表面活性剂BS-12与取代芳烃对发光菌的联合作用  

Joint Toxicity for BS-12 of Amphoteric Surfactant and Substituted Aromatic Compounds to Photobacterium Phosphoreum

作　　者：董玉瑛[1] 曹瑛[1] 王洋[1] 杨宝灵[1] 

机构地区：[1]大连民族学院生命科学学院,辽宁大连116605

出　　处：《大连民族学院学报》2009年第1期4-7,共4页Journal of Dalian Nationalities University

基　　金：人事部留学人员科技活动择优资助项目(2007170);辽宁省教育厅高等学校科学研究项目(2005090)

摘　　要：以发光菌作为指示生物测定了两性表面活性剂十二烷基二甲基甜菜碱(BS-12)的单一毒性,以及在等剂量下BS-12和苯酚、甲苯、硝基苯的二元与多元混合物的联合毒性效应;采用毒性单位(TU)、相加指数(AI)、相似性参数(λ)和混合毒性指数(MTI)4种联合毒性评价方法,对混合体系联合毒性作用类型进行了研究。结果显示,4种不同的评价方法对研究体系联合效应评价结果具有较好的一致性,BS-12+甲苯的混合体系表现出相加作用,BS-12+硝基苯和BS-12+甲苯+硝基苯混合体系表现出拮抗作用,其他呈现不同程度的协同作用。The toxicity to Photobacterium phosphoreum of different mixture systems of amphoteric surfactant of dodecyldimethyl betaine （ BS - 12 ） and three substituted aromatic compounds including phenol, toluene and nitrobenzene, according to equiconcentration ratio of 1 ： 1, as well as individual toxicity, were determined respectively. They were evaluated by toxicity unit （ TU）, additive index （ AI）, similarity parameter （λ）, and mixture toxicity index （ MTI ） Four evaluating methods were compared and the modes of joint action of different systems were analyzed. It was shown that the coherent results were obtained by four different evaluating methods. Conclusions can be drawn that the mixture of BS - 12 and toluene was additive effect, the mixture of BS- 12 nitrobenzene, BS- 12 toluene nitrobenzene showed antagonistic effect, and the other mixtures exhibit synergistic effects.

关 键 词：BS-12 取代芳烃 发光菌 联合毒性 毒性评价 

分 类 号：X503.2[环境科学与工程—环境工程]