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Reference type: Journal
Authors: Ebrahimzadeh H, Behbahani M, Yamini Y, Adlnasab L, Asgharinezhad AA
Article Title: Optimization of Cu(II)-ion imprinted nanoparticles for trace monitoring of copper in water and fish samples using a Box-Behnken design.
Publication date: 2013
Journal: Reactive and Functional Polymers
Volume: 73
Issue: (1)
Page numbers: 23-29.
DOI: 10.1016/j.reactfunctpolym.2012.10.006
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1381514812002696

Abstract: We describe a nanoparticles ion-imprinted polymer (IIP) for the selective preconcentration of copper (II) ions. It was obtained by precipitation polymerization from 2-vinylpyridine (the functional monomer), ethylene glycol dimethacrylate (the cross-linker), 2,2'-azobisisobutyronitrile (the initiator), 2,9-dimethyl-1,10-phenanthroline (the copper-binding ligand) and nickel nitrate (the template ion) in acetonitrile solution. The IIP particles were characterized by Fourier Transformed Infra Red Spectroscopy (FTIR), thermogravimetric and differential thermal analysis, and by scanning electron microscopy. The optimization process was carried out using the Box-Behnken design (BBD). Effects of several factors such as solution pH for adsorption, amount of polymer, type, concentration and volume of eluent for extraction, as well as adsorption and desorption times were investigated. Under the optimum conditions (type and concentration of eluent, HCl 1.6 mol L-1; volume of eluent, 6 mL; adsorption solution pH, 6.0; amount of polymer, 30 mg; adsorption time, 25 min; desorption time, 25 min), preconcentration factor of the proposed method was approximately 100. Under the optimized conditions, the detection limit was found to be 0.1 μg L-1, while the relative standard deviation (RSD) for six replicate measurements was calculated to be < 4%
Template and target information: copper ions, Cu(II)
Author keywords: Cu(II)-ion imprinted polymer, copper, Flame atomic absorption spectroscopy, Box-Behnken design

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