Nonlinear binding of phenanthrene to the extracted fulvic acid fraction   in soil in comparison with other organic matter fractions and to the   whole soil sample

doi:10.1016/j.envpol.2009.08.035

CORC > 北京大学 > 城市与环境学院

	Nonlinear binding of phenanthrene to the extracted fulvic acid fraction in soil in comparison with other organic matter fractions and to the whole soil sample
	Liu, Wenxin ; Xu, Shanshan ; Xing, Baoshan ; Pan, Bo ; Tao, Shu
刊名	environmental pollution
	2010
关键词	Soil organic matter Fractionation Whole soil Phenanthrene Nonlinear sorption POLYCYCLIC AROMATIC-HYDROCARBONS DISTRIBUTED REACTIVITY MODEL DISSOLVED HUMIC ACIDS BLACK CARBON CHAR PREDICT BIOAVAILABILITY ADSORPTIVE PROPERTIES SORPTION SUBSTANCES SEDIMENTS DESORPTION
DOI	10.1016/j.envpol.2009.08.035
英文摘要	Fractions of soil organic matter in a natural soil were extracted and sorption (or binding) characteristics of phenanthrene on each fraction and to the whole sample were investigated. The organic carbon normalized single point sorption (or binding) coefficient followed lipid > humin (HM) > humic acid (HA) > fulvic acid (FA) > whole soil sample, while the nonlinear exponent exhibited lipid > FA > HA > whole soil sample > HM. FA showed nonlinear binding of phenanthrene as it often does with other fractions. HM and HA contributed the majority of organic carbon in the soil. The calculated sorption coefficients of the whole soil were about two times greater than the measured values at different equilibrium phenanthrene concentrations. As for phenanthrene, the sorption capacity and nonlinearity of the physically mixed HA-HM mixtures were stronger as compared to the chemically reconstituted HA-HM composite. This was attributed to(besides the conditioning effect of the organic solvents) interactions between HA and HM and acid-base additions during fractionation. (C) 2009 Elsevier Ltd. All rights reserved.; Environmental Sciences; SCI(E); EI; PubMed; 8; ARTICLE; 2; 566-575; 158
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160709]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Liu, Wenxin,Xu, Shanshan,Xing, Baoshan,et al. Nonlinear binding of phenanthrene to the extracted fulvic acid fraction in soil in comparison with other organic matter fractions and to the whole soil sample[J]. environmental pollution,2010.
APA	Liu, Wenxin,Xu, Shanshan,Xing, Baoshan,Pan, Bo,&Tao, Shu.(2010).Nonlinear binding of phenanthrene to the extracted fulvic acid fraction in soil in comparison with other organic matter fractions and to the whole soil sample.environmental pollution.
MLA	Liu, Wenxin,et al."Nonlinear binding of phenanthrene to the extracted fulvic acid fraction in soil in comparison with other organic matter fractions and to the whole soil sample".environmental pollution (2010).