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单歧藻对烷基酚类化合物的生物降解性及QSBR研究

赵 丽 刘征涛 冯 流 沈萍萍 孔志明

赵 丽, 刘征涛, 冯 流, 沈萍萍, 孔志明. 单歧藻对烷基酚类化合物的生物降解性及QSBR研究[J]. 环境科学研究, 2005, 18(1): 23-26.
引用本文: 赵 丽, 刘征涛, 冯 流, 沈萍萍, 孔志明. 单歧藻对烷基酚类化合物的生物降解性及QSBR研究[J]. 环境科学研究, 2005, 18(1): 23-26.
ZHAO Li, LIU Zheng-tao, FENG Liu, SHEN Ping-ping, KONG Zhi-ming. Study on Biodegradability of Alkyl Phenols by Tolypothrix and QSBR[J]. Research of Environmental Sciences, 2005, 18(1): 23-26.
Citation: ZHAO Li, LIU Zheng-tao, FENG Liu, SHEN Ping-ping, KONG Zhi-ming. Study on Biodegradability of Alkyl Phenols by Tolypothrix and QSBR[J]. Research of Environmental Sciences, 2005, 18(1): 23-26.

单歧藻对烷基酚类化合物的生物降解性及QSBR研究

基金项目: 国家重点基础研究发展计划项目(2002CB412401)

Study on Biodegradability of Alkyl Phenols by Tolypothrix and QSBR

  • 摘要: 以单歧藻为主要微生物源,用二级反应动力学方程拟合8种烷基酚类化合物的生物降解动力学过程,得到它们在藻中的生物降解速率常数K.采用Mopac软件PM3法及文献资料计算了化合物的多种理化参数,应用SPSS统计软件做回归分析,对1gK进行了结构-生物降解性(QSBR)的研究.结果表明,疏水性参数lgKow,分子量Mw,一级价键连接指数1Xv,二级价键连接指数2Xv,生成热△Hf和分子偶极距μ能够较好地拟合烷基酚类化合物的生物降解速率,其中2Xv拟合效果最好.在此基础上,初步分析了烷基酚类化合物的生物降解机理,认为空间参数是决定其生物降解的主要因素,化合物的生成热和电性参数μ,Ehomo的影响也不可忽视.

     

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出版历程
  • 收稿日期:  2004-04-09
  • 刊出日期:  2005-02-25

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