Correction to: J Radioanal Nucl Chem (2017) 313:537–545 https://doi.org/10.1007/s10967-017-5304-0

On page 538, in second column/line number 5, the value for the cation exchange capacity of the Na-montmorillonite clay is 23 meq per 100 g instead of 87 meq per 100 g.