Development and validation of the passive samplers Diffusive Gradients in Thin Films (DGT) as monitoring tools to study metal dynamics and sediment - water interactions in a complex river system such as the Zenne River. (BRGEOZ224)

The theory behind DGT is based on the diffusional characteristics of metals in a hydrogel and on the ion exchange properties of a metal-binding resin. Specifically, the technique utilizes a hydrogel layer to control the diffusive transport of metals in solution to a cation-exchange resin. In addition, since the resin used in DGT (Chelex) is selective for free or weakly complexed species, it provides a proxy for the labile fraction of metals in solution.

Keywords:Chemistry

Disciplines:Chemical sciences