Influence of Bisolute Competition on the Desorption Kinetics of Polycyclic Aromatic Hydrocarbons in Soil

@article{White1999InfluenceOB,
  title={Influence of Bisolute Competition on the Desorption Kinetics of Polycyclic Aromatic Hydrocarbons in Soil},
  author={Jason Christopher White and Joseph J. Pignatello},
  journal={Environmental Science \& Technology},
  year={1999},
  volume={33},
  pages={4292-4298}
}
The dual-mode (partition/hole-filling) model of soil organic matter (SOM) as a heterogeneous polymerlike sorbent of hydrophobic compounds predicts that a competing solute will accelerate diffusion of the primary solute by blocking the holes, allowing the principal solute to move faster through the SOM matrix. We tested this hypothesis with phenanthrene as the primary solute and pyrene as the competing solute in two sterile soils of widely different organic carbon content (1.4 and 43.9%). Two… 

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