Soil/EDTA/Chelex mixture for the metal transfer from the solid
phase to Chelex as a simple model for mimicking the soil/plant
transfer.
Soil/EDTA mixture, as the single extractive scheme, for simulating
the kinetics of the desorption process.
EDTA extract/Chelex mixture to assess the metal dissociation in
soil solution and its removal by Chelex used here as a sink for
metal uptake.
The kinetic trends of desorption/removal processes will be compared
and extended to the kinetic regimes of each TM in the ternary
system of Soil/EDTA/Chelex. The objective is to evaluate the
limiting and controlling effect of the kinetics in the transfer of each
TM from the soil to the Chelex.