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氯代苯对水生生物毒性的定量构效关系研究
QSAR Investigation of Chlorinated Benzene Toxicity to Aquatic Organisms
【摘要】 在烷烃分子距离 -边数矢量 (MDE)的基础上 ,定义并计算了氯代苯的结构参数。借助多元线性回归技术建立新的MDE矢量与氯代苯类对水生生物毒性的定量结构 -毒性相关关系 (QSTR)模型 ,并运用所建模型对外部样本的毒性进行了预测 ,结果表明模型具有较强的预测能力。
【Abstract】 Based on the molecular distance-edge (MDE) vector of alkanes, a new set of parameter was defined and calculated, which could be applied to describe the structure of chlorinated benzene. The multiple linear regression (MLR) methods were used to develop a quantitative structure-toxicity relationship (QSTR) model between MDE vectors and the chlorinated benzene toxicity to aquatic organisms. The result showed that the model has good predictability to outer sample of prediction set.
【关键词】 拓扑指数;
氯代苯;
水生生物;
半数致死剂量LC50;
半数有效剂量EC50;
定量构毒关系(QSTR);
【Key words】 topological index; chlorinated benzene; aquatic organisms; LC 50; EC 50; quantitative structure- toxicity relationship (QSTR);
【Key words】 topological index; chlorinated benzene; aquatic organisms; LC 50; EC 50; quantitative structure- toxicity relationship (QSTR);
- 【文献出处】 渝州大学学报(自然科学版) ,JOURAL OF YUZHOU UNIVERSITY(NATURAL SCIENCES EDITION) , 编辑部邮箱 ,2000年03期
- 【分类号】O621
- 【被引频次】7
- 【下载频次】185