2.6. IIP extraction procedure
Batch experiments were used for adsorption and desorption
studies. The dry imprinted polymer (30 mg) was immersed in
solution containing unknown concentration of zinc ions. The
solution was pH-adjusted to 6.6, stirred for 23 min, then the
solution was filtered, and ultrapure water was used for washing
the zinc ions on the surface of the polymer. The solid polymer was
suspended in 25 mL of HCl 12% (v/v) as the eluent and stirred for
23 min. The resulting solution was subsequently filtered and
concentration of zinc ions was determined by FAAS