Evaluation of Combined Toxicity of Phenols and Lead to Photobacterium phosphoreum and Quantitative Structure-Activity Relationships

被引：11
|
作者：
Su, L. M. [1 ]
Zhao, Y. H. [1 ]
Yuan, X. [1 ]
Mu, C. F. [1 ]
Wang, N. [1 ]
Yan, J. C. [1 ]
机构：
[1] NE Normal Univ, Coll Urban & Environm Sci, Changchun 130024, Peoples R China
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2010年 / 84卷 / 03期
关键词：
QSAR; Photobacterium phosphoreum; Synergism; Antagonism; MIXTURES; MODELS;
D O I：
10.1007/s00128-009-9665-0
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The combined toxicity of lead (Pb) and nine phenols were measured. The result indicated that the combined toxicity is not only dependent on the Pb concentrations but also on the positions of substituted groups of phenols. Quantitative structure-activity relationship equations were built from the combined toxicity and physico-chemical descriptors of phenols in the different Pb concentrations. The combined toxicity was related to water solubility and the third order molecular connectivity index ((3) X) in low Pb concentration, to solute excess molar refractivity (E) and ionization constant (pKa) in medium Pb concentration and to dipolarity/polarizability (S) in high Pb concentration.
引用
收藏
页码：311 / 314
页数：4
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