Selective extraction and sensitive determination of mercury (II) ions by flame atomic absorption spectrometry after preconcentration on an ion-imprinted polymer-coated maghemite nanoparticles

An ion-imprinted polymer-coated maghemite nanoparticle adsorbent for selective extraction of Hg(II) ion was synthesized. The polymerization was carried out by the new mercaptoethylamino monomer as the functional monomer, ethylene glycol dimethacrylate as the crosslinking agent and ammonium persulfate as the initiator in the presence of Hg(II) ions as the template. The synthesized nanoparticles were characterized using FT-IR, XRD and TEM...