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Reference type: Journal
Authors: Roushani M, Abbasi S, Khani H
Article Title: Synthesis and application of ion-imprinted polymer nanoparticles for the extraction and preconcentration of mercury in water and food samples employing cold vapor atomic absorption spectrometry.
Publication date: 2015
Journal: Environmental Monitoring and Assessment
Volume: 187
Issue: (9)
Page numbers: ArticleNo601.
DOI: 10.1007/s10661-015-4820-z

Abstract: We describe a nanosized Hg(II)-imprinted polymer that was prepared from methacrylic acid as functional monomer, ethyleneglycol dimethacrylate as cross-linker, 2,2'-azobisisobutyronitrile (AIBN) as radical initiator, 2, 2'-di pyrydyl amine as a specific ligand, and Hg (II) as the template ions by precipitation polymerization method in methanol as the progeny solvent. Batch adsorption experiments were carried out as a function of pH, Hg (II) imprinted polymer amount, adsorption and desorption time, volume, and concentration of eluent. The synthesized polymer particles were characterized physically and morphologically by using infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopic techniques. The maximum adsorption capacity of the ion-imprinted and non-imprinted sorbent was 27.96 and 7.89 mg g-1, respectively. Under optimal conditions, the detection limit for mercury was 0.01 μg L-1 and the relative standard deviation was 3.2 % (n = 6) at the 1.00 μg L-1. The procedure was applied to determination of mercury in fish and water samples with satisfactory results
Template and target information: mercury ion, Hg(II)
Author keywords: Ion-imprinted polymer, nanoparticles, mercury, Food samples

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