Metal speciation dynamics in colloidal ligand dispersions.

  title={Metal speciation dynamics in colloidal ligand dispersions.},
  author={Jos{\'e} Paulo Pinheiro and Marcel Minor and Herman P van Leeuwen},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  volume={21 19},
In this work we propose a dynamic metal speciation theory for colloidal systems in which the complexing ligands are localized on the surface of the particles; i.e., there is spatial heterogeneity of binding sites within the sample volume. The differences between the complex formation and dissociation rate constants of complexes in colloidal dispersions and those in homogeneous solutions originate from the differences in kinetic and mass transport conditions. In colloidal systems, when the… CONTINUE READING

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