PHILIPPINI , Violaine

Complexation of divalent cations (Mg2+, Co2+, Ni2+, Cu2+, Cd2+) by selenate ligand was studied by ACE (UV indirect detection) in 0.1 mol/L NaNO3 ionic strength solutions at various temperatures (15, 25, 35, 45 and 55°C). For each solution, a unique peak was observed as a result of a fast equilibrium between the free ion and the complex (labile...

Predictive modelling of uranium speciation in natural waters can be achieved using equilibrium thermodynamic data and adequate speciation software. The reliability of such calculations is highly dependent on the equilibrium reactions that are considered as entry data, and the values chosen for the equilibrium constants. The working group "...

International audience

• Variations of dissolved arsenic concentration according to water/rock interactions • As in river water originates from Perm-ian and Hercynian metamorphic rocks • 4.2 tons⋅year − 1 of dissolved As is transferred to the Mediterranean Sea. • The use of a mixing model supports the non-conservative nature of arsenic. A detailed study on arsenic...

International audience