Preferred Qualifications: Experience in one or more of the following areas is desirable (prior experience with every listed technique is not required): rare-earth or f-element chemistry; solvent extraction, liquid-liquid extraction, hydrometallurgy, or chemical separations; ICP-MS or ICP-OES; DLS and colloid characterization; TEM or SEM; SAXS/WAXS or other X-ray/neutron scattering techniques; X-ray absorption spectroscopy (XANES/EXAFS); magnetic characterization. The main tasks include preparing rare-earth-containing complexes and nanoassemblies, designing extraction and separation experiments, quantifying metal concentrations and separation factors using ICP-MS and/or ICP-OES, and characterizing particle size, morphology, and structure using techniques such as dynamic light scattering (DLS), electron microscopy, small-angle X-ray scattering (SAXS), and X-ray methods.