Adsorption and desorption kinetics of rhodium (III) and platinum (IV) in turbid suspensions: Potential tracers for sediment transport in estuarine flumes

Rhodium and Pt are taken up irreversibly onto cohesive sediments, and to some extent on non-cohesive sediments, and are quantitatively recovered by concentrated HNO3. This suggests that Rh and Pt can be used as tracers in studies of particle movement in laboratory flumes, thereby improving models predicting the behaviour of contaminated sediments in turbid estuaries.