MIPs logo MIPdatabase      MIP2024 Conference banner, website is now open, register on site for important updates   
Custom Search
Reference type: Journal
Authors: Behbahani M, Salarian M, Bagheri A, Tabani H, Omidi F, Fakhari A
Article Title: Synthesis, characterization and analytical application of Zn(II)-imprinted polymer as an efficient solid-phase extraction technique for trace determination of zinc ions in food samples.
Publication date: 2014
Journal: Journal of Food Composition and Analysis
Volume: 34
Issue: (1)
Page numbers: 81-89.
DOI: 10.1016/j.jfca.2013.10.003
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0889157513001373

Abstract: Zinc imprinted polymer (Zn(II)-IIP) as a solid-phase extraction technique was applied for preconcentration and determination of zinc in environmental and food samples by FAAS. Zn(II)-IIP was synthesized by copolymerization of 2-vinylpyridine as the functional monomer, ethylene glycol dimethacrylate (EGDMA) as the cross-linker, 2,2-azobisisobutyronitrile as the initiator, Zn(NO3)2 as the template ion, diphenylcarbazone as the ligand, and methanol/dichloromethane (50:50) as the solvent. The synthesized polymer particles were characterized by thermogravimetry analysis (TGA), differential thermal analysis (DTA), scanning electron microscopy (SEM), Fourier transform infrared spectrometry (FT-IR), and X-ray diffraction (XRD). The optimization process was carried out using the central composite design (CCD). With this design, the optimum conditions for the adsorption step were 6.6, 30 mg, and 23 min, for pH, mass of polymer and adsorption time respectively, and for desorption step the optimal conditions were 14 mL, 12% (v/v), and 23 min, for volume of eluent, concentration of eluent, and desorption time, respectively. Under the optimized conditions, the detection limit of the proposed method was found to be 0.15 μg L-1, while the relative standard deviation (RSD) for 10 replicate measurements was calculated to be 2.8%. Therefore the introduced selective solid phase extraction method can be used as a reliable technique for selective and sensitive trace detection of zinc in different food matrixes, and the reliability of the proposed solid phase extraction technique was established by the analysis of standard reference materials
Template and target information: zinc ion, Zn(II)
Author keywords: ion imprinted polymer, copolymerization, zinc, Solid-phase extraction, preconcentration, food analysis, Food composition, flame atomic absorption spectrometry, food safety, Metal contamination levels in food

  I love MIPs bag  multi MIPs logo mug    mug featuring the element Zinc


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner