Uptake behavior of ⁷³As, ⁷⁵Se, ^197mHg, ²¹²Pb and ²¹⁰Po on Eichrom pre-filter resin from HCl and HNO₃

The extraction of ⁷³As, ⁷⁵Se, ^197mHg, ²¹²Pb and ²¹⁰Po on Eichrom pre-filter resin was studied in HCl and HNO₃ with batch uptake, kinetic and column experiments. There was significant extraction of mercury in HNO₃ and HCl, and polonium and selenium in HCl. The kinetics are sufficient to allow for retention on pre-filter columns, and separations of ⁷³As from ⁷⁵Se and ^197mHg, and ²¹²Pb from ²¹⁰Po are demonstrated. This retention is important for the development of chemical separations as pre-filter resin is commonly used alongside extraction chromatography resins but its potential for uptake of metal ions is not well characterized.