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Reference type: Journal
Authors: Abbasi S, Roushani M, Khani H, Sahraei R, Mansouri G
Article Title: Synthesis and application of ion-imprinted polymer nanoparticles for the determination of nickel ions.
Publication date: 2015
Journal: Spectrochimica Acta Part A-Molecular and Biomolecular Spctroscopy
Volume: 140
Page numbers: 534-543.
DOI: 10.1016/j.saa.2014.11.107
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1386142514018204

Abstract: Novel Ni(II) ion-imprinted polymers (Ni-IIP) nanoparticles were prepared by using Ni(II) ion-1,5-diphenyl carbazide (DPC) complex as the template molecule and methacrylic acid, ethylene glycol dimethacrylate (EGDMA) and 2,2'-azobisisobutyronitrile (AIBN) as the functional monomer, cross-linker and the radical initiator, respectively. The synthesized polymer particles were characterized physically and morphologically by using infrared spectroscopy (IR), thermo gravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscopic (SEM) techniques. Some parameters such as pH, weight of the polymer, adsorption time, elution time, eluent type and eluent volume which affects the efficiency of the polymer were studied. The preconcentration factor, relative standard deviation, and limit of detection of the method were found to be 100, 1.9%, and 0.002 μg mL-1, respectively. The prepared ion-imprinted polymer particles have an increased selectivity toward Ni(II) ions over a range of competing metal ions with the same charge and similar ionic radius. The method was applied to the determination of nickel in tomato and some water samples
Template and target information: nickel ion, Ni(II)
Author keywords: ion imprinted polymer, nanoparticles, nickel, preconcentration


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