17th Iranian Seminar of Analytical Chemistry , 2010-09-12

Title : ( Synthesis and characterization of nano-pore Thallium (III) ion-imprinted polymer as a new sorbent for ‎separation and preconcentration of thallium )

Authors: Mohammad Hossein Arbab Zavar , Mahmod CHamsaz , Gholamhossein Zohuri , Abolfazl Darroudi ,

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Thallium (III) ion-imprinted polymer (IIP) particles were synthesized by preparing the ternary ‎complex of thallium (III) ions with 5, 7- dichloroquinoline-8-ol (DCQ) and 4-vinylpyridine (VP). ‎Thermal copolymerization with methyl methacrylate (functional monomer, MMA) and ‎ethyleneglycoldimethacrylate (cross-linking monomer, EGDMA) was then performed in the presence ‎of acetonitrile (porogen) and 2, 2 azobisisobutyronitrile (initiator, AIBN). The imprinted ion was removed ‎from polymer by stirring of the above particles with 5M HNO3 to obtain the leached IIP particles. Moreover, ‎control polymer (CP) particles were similarly prepared without the thallium (III) ions. The unleached and ‎leached IIP particles were characterized by surface area analysis (BET ), X-ray diffraction (XRD), Fourier ‎transform infra-red spectroscopy (FT-IR), thermo gravimetric analysis (TGA) and scanning electron ‎microscopy (SEM).The preconcentration of the thallium (III) from aqueous solution was studied during rebinding with ‎the leached IIP particles as a function of pH, the weight of the polymer material, the uptake and desorption times, the ‎aqueous phase and the desorption volumes. Electrothermal atomic absorption spectrometry (ETAAS) was employed ‎for determination of thallium in aqueous solution. The limit of detection for the method was ‎‎0.02ngmL-1, while the relative standard deviation for five replicates was 2.6%.‎

Keywords

, ‎ ion- imprinted polymer, Thallium (III), solid phase
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@inproceedings{paperid:1017811,
author = {Arbab Zavar, Mohammad Hossein and CHamsaz, Mahmod and Zohuri, Gholamhossein and Darroudi, Abolfazl},
title = {Synthesis and characterization of nano-pore Thallium (III) ion-imprinted polymer as a new sorbent for ‎separation and preconcentration of thallium},
booktitle = {17th Iranian Seminar of Analytical Chemistry},
year = {2010},
location = {کاشان, IRAN},
keywords = {‎ ion- imprinted polymer; Thallium (III); solid phase extraction},
}

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%0 Conference Proceedings
%T Synthesis and characterization of nano-pore Thallium (III) ion-imprinted polymer as a new sorbent for ‎separation and preconcentration of thallium
%A Arbab Zavar, Mohammad Hossein
%A CHamsaz, Mahmod
%A Zohuri, Gholamhossein
%A Darroudi, Abolfazl
%J 17th Iranian Seminar of Analytical Chemistry
%D 2010

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