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Magnesium(II)-doped nickel ferrite (Mg–NiFe2O4) nanoparticles are introduced as a new adsorbent for magnetic solid phase extraction of lead(II) ions from aqueous solutions. The structure and morphology of the adsorbent was characterized by FTIR, X-ray diffraction and scanning electron microscopy. The effects of pH value, amount of adsorbent, type, concentration and volume of the eluent and adsorption/desorption...
We demonstrate the applicability of ionic liquid-modified silica-coated Mn3O4 nanoparticles (NPs) as a sorbent for solid-phase extraction and preconcentration of Ag(I) ion without a chelating agent. The size, morphology and surface coating of the nano-sorbent were characterized via X-ray diffraction analysis, scanning electron microscopy and Fourier transform IR spectroscopy. Following desorption...
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