journal6 ›› 2008, Vol. 29 ›› Issue (1): 95-100.

• 化学化工 • 上一篇    下一篇

预测取代芳烃生物降解性的分子形状及连接性模型

  

  1. (徐州师范大学化学系,江苏 徐州 221116)
  • 出版日期:2008-01-25 发布日期:2012-05-26
  • 通讯作者: 冯长君(1954-),男,教授,主要从事物质构效学研究.E-mail:fengcjxznu@xznu.edu.cn.
  • 作者简介:关丽娜(1986-),江苏徐州人,徐州师范大学化学系学生
  • 基金资助:

    (清华大学)环境模拟与污染控制国家重点联合实验室开放基金项目(KJ2007001);徐州师范大学培育课题(05PYL04);徐州师范大学学生科研立项课题

Molecular Shape and Connectivity Models for Predicting Biodegradability of Substituted Aromatic Compounds

  1. (School of Chemistry and Chemical Engineering,Xuzhou Normal University, Xuzhou 221116,Jiangsu China)
  • Online:2008-01-25 Published:2012-05-26

摘要:应用分子连接性指数(mXvt)及分子形状指数(mK)分析影响42种取代芳烃在活性污泥中的生化需氧量(BOD),建构了一个5变量的QSBR模型,其可决系数(R)为0.482,估算标准误差为10.706,具有良好的稳健性与预测能力.该模型比片段常数模型(R=0.223)及文献[3]的人工神经网络(ANN)模型(R=0.427)更为精确.

关键词: 取代芳烃, 生化需氧量, 连接性指数, 分子形状指数, 定量结构-生物降解性模型

Abstract: Five variables quantitative structure-biodegradability relationship (QSBR) model was established applying Kier’s molecular connectivity indices (mXvt) and shape indices(mK) simulation analysis of the biochemical oxygen demand (BOD) of 42 substituted aromatic compounds with (by) activated sludge.The model determined that coefficient(R) is 0.482,and standard deviation is 10.706,which possessed robustness and predictability.The model was superior to fragment constant model (R=0.223) and the neural network approach (R=0.427) of literature [3].

Key words: substituted aromatic compounds, biochemical oxygen demand (BOD), molecular connectivity indices, molecular shape indices, quantitative structure-biodegradability relationship (QSBR) model

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