Acute tozicities and QSAR of substituted phenols to photobacterium phosphoreum at different pH
The acute toxicities (the concentration value causing a 50％ inhibition of bioluminescence after 15 minutes, abbreviated 15min-EC50) of 12 substituted phenols to photobacterium phosphoreum were measured at different pH (5.0, 7.0, 9.0). The quantitative structure-activity relationship was studied by applying two physicochemical parameters logP and EHOMO. And the toxicity mechanism was preliminarily discussed. The results showed that the toxicities of substituted phenols decreased with pH, but the effect is not very significant. The toxicities of substituted phenols vary with the kind, the number and the position of substituents at the same pH. The inosculation of the fitted toxicities and the observed toxicities is considerably satisfying through QSAR research.
substituted phenols photobacterium phosphoreum QSAR pH 15min-EC50
Lin Xi-yan Yu Rui-lian Hu gong-ren
Department of Environmental Science and Engineering Huaqiao University Quanzhou 362021,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）