These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Use of nanoporous Cu(II) ion imprinted polymer as a new sorbent for preconcentration of Cu(II) in water, biological, and agricultural samples and its determination by electrothermal atomic absorption spectrometry.
    Author: Fazelirad H, Ali Taher M, Ashkenani H.
    Journal: J AOAC Int; 2014; 97(4):1159-66. PubMed ID: 25145152.
    Abstract:
    A new and selective Cu(ll) ion imprinted polymer was prepared by formation of 1-(2-pyridylazo)-2-naphthol complex for selective extraction and preconcentration of Cu ions. Polymerization was performed with ethylene glycol dimethacrylate as a crosslinking monomer and methacrylic acid as a functional monomer in the presence of 2,2'-azobis(isobutyronitrile) as an initiator via a bulk polymerization method. The Cu(ll) imprinted polymeric particles were characterized by scanning electron microscopy and IR spectrometry. The imprint Cu ion was removed from the polymeric matrix using 2 M HNO3. Optimum pH for maximum sorption was 5-8. Maximum sorbent capacity and the enrichment factor for Cu(ll) were 11.3 mg/g and 100, respectively. The RSD and LOD of the method were evaluated as +/-4.3% and 8.7 ng/L, respectively. The proposed method is simple, highly selective, and sensitive and can be applied to the determination of ultratrace amounts of Cu in water, biological, and agricultural samples.
    [Abstract] [Full Text] [Related] [New Search]