Pass through cation column (Sr retained, trace rubidium and color in eluate)
Wash
gradiently with 0.1, 0.5, and 1.0 M HCl
Elute
Sr-82 from column with 4 M HCl
Evaporate
eluate to dryness
Add Concentrated HNO3 to residue and
evaporate to dryness
Convert back to chloride, 0.1 M HCl product solution
