Characterization of the interactions between uranium and colloids in soil by on-line fractionation multi-detection methods
Résumé
It is acknowledged that colloids can be important for determining contaminant availability and mobility. We have used size exclusion chromatography SEC and asymmetrical flow field-flow fractionation (As-FFFF) coupled with refractometry (RI), multi angle laser light scattering (MALLS), ultraviolet (UV) and inductively coupled plasma mass spectrometry (ICP-MS) detectors to study colloidal binding of uranium in leachates. The nature, the molecular and size distribution and the quantitative uranium distribution over the colloidal phase are obtained.
Mots clés
Colloids
Fractionation
Groundwater
Hydrogeology
Inductively coupled plasma mass spectrometry
Asymmetrical flow field-flow fractionations
Contaminant availability
Inductively coupled plasma mass spectrometries (ICPMS)
Multiangle laser light scattering
Multidetection
On-line fractionation
Refractometry
Uranium distribution
Uranium