MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Shamsipur M, Fasihi J, Khanchi A, Hassani R, Alizadeh K, Shamsipur H
Article Title: A stoichiometric imprinted chelating resin for selective recognition of copper(II) ions in aqueous media.
Publication date: 2007
Journal: Analytica Chimica Acta
Volume: 599
Issue: (2)
Page numbers: 294-301.
DOI: 10.1016/j.aca.2007.08.013
Alternative URL: http://www.sciencedirect.com/science/article/B6TF4-4PDSBRM-1/2/091e2df491b726482039532f4143c8f9

Abstract: This work reports the preparation of a new copper(II) ion-imprinted polymer (IIP) material, using 5,6;14,15-dibenzo-1,4-dioxa-8,12-diazacyclopentadecane-5,14-diene (DBDA15C4) and 2-vinylpyridine (VP) as a non-vinylated chelating agent and a functional vinyl monomer, respectively. The Cu2+ ion can form stable complexes with DBDA15C4 and VP. The stoichiometries of Cu2+-DBDA15C4 and ternary Cu2+-DBDA15C4-VP complexes were elucidated using conductometric and spectrophotometric methods, and found to be Cu2+(DBDA15C4), Cu2+(DBDA15C4)2 and Cu2+(DBDA15C4)(VP)2. The results obtained from solution studies were also supported by ab initio theoretical calculations. The resulting ternary complex Cu2+(DBDA15C4)(VP)2 was copolymerized with ethyleneglycoldimethacrylate, as a cross-linking monomer, via bulk polymerization method. The imprinted copper ion was removed from the polymeric matrix by 0.1 M HNO3. The Cu2+-imprinted polymer particles were characterized by IR spectroscopy and elemental analysis. Optimum pH range for rebinding of Cu2+ on the IIP and equilibrium binding time were 7.0-7.5 and 45 min, respectively. Sorbent capacity and enrichment factor for Cu2+ were obtained as 75.3 +/- 1.9 μmol g-1 and 100, respectively. In selectivity study, it was found that imprinting results in increased affinity of the material toward Cu2+ ion over other competitor metal ions with the same charge and close ionic radius. The prepared IIPs were repeatedly used and regenerated for five times without a significant decrease in polymer binding affinities
Template and target information: copper ion, Cu(II)
Author keywords: Ion-imprinted polymer, Cu2+, Aza-crown, 2-vinylpyridine, Bulk polymerization, Inductively coupled plasma-atomic emission spectrometry

  I love MIPs shirt  multi MIPs logo mug    mug featuring the element Copper

Molecules Special Issue call      Appeal for information


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