title: Estimation of soil organic partition coefficients: from retention factors measured by soil column chromatography with water as eluent.
abstract: The retention factors (k) of 104 hydrophobic organic chemicals (HOCs) were measured in soil column chromatography (SCC) over columns filled with three naturally occurring reference soils and eluted with Milli-Q water. A novel method for the estimation of soil organic partition coefficient (Koc) was developed based on correlations with k in soil/water systems. Strong log Koc versus log k correlations (r>0.96) were found. The estimated Koc values were in accordance with the literature values with a maximum deviation of less than 0.4 log units. All estimated Koc values from three soils were consistent with each other. The SCC approach is promising for fast screening of a large number of chemicals in their environmental applications.
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, PR China. fengxu64@hotmail.com
authors.forename: Feng
authors.initials: F
authors.lastname: Xu
authors.forename: Xinmiao
authors.initials: X
authors.lastname: Liang
authors.forename: Bingcheng
authors.initials: B
authors.lastname: Lin
authors.forename: Karl-Werner
authors.initials: KW
authors.lastname: Schramm
authors.forename: Antonius
authors.initials: A
authors.lastname: Kettrup
mesh_terms: D009930:Organic Chemicals / Q000737:chemistry*; D012987:Soil; D014867:Water / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals; D012987:Soil; D014867:Water