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Reference type: Journal
Authors: Dahaghin Z, Mousavi HZ, Sajjadi SM
Article Title: A novel magnetic ion imprinted polymer as a selective magnetic solid phase for separation of trace lead(II) ions from agricultural products, and optimization using a Box-Behnken design.
Publication date: 2017
Journal: Food Chemistry
Volume: 237
Page numbers: 275-281.
DOI: 10.1016/j.foodchem.2017.05.118
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0308814617309160

Abstract: In this work, a magnetic ion-imprinted polymer (Fe3O4@SiO2@IIP) as a novel and selective nanosorbent for selective extraction of Pb(II) ions from various agricultural products is presented. The novel lead magnetic ion-imprinted polymer was synthesized by imidazole as a new ligand and grafted onto the surface of Fe3O4@SiO2 NPs. A Box-Behnken (BBD) design was used for optimization of the extraction and elution steps. In the selected conditions, the limit of detection was 0.48 ng mL-1, preconcentration factor was 300, the sorption capacity of this new magnetic ion-imprinted polymer was 105 mg g-1, and the precision of the method (RSD%) for six replicate measurements was found 3.2%. Finally, the feasibility of the new magnetic ion-imprinted polymer was evaluated by extraction and determination of trace Pb2+ ions in different agricultural products including (orange, mango, apple, kiwi, lettuce, broccoli, carrot, squash, eggplant, radish, mushroom, cucumber, and tomato)
Template and target information: lead ion, Pb(II)
Author keywords: Magnetic-ion imprinted polymer, Lead(II) determination, atomic absorption spectrometry, Box-Behnken design

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