Authors
Mostafa Khajeh, Zaman Shamohammadi Heidari, Esmael Sanchooli
Publication date
2011/2/1
Journal
Chemical engineering journal
Volume
166
Issue
3
Pages
1158-1163
Publisher
Elsevier
Description
In this work, several lead-ion imprinted polymers (Pb(II)-IIP) for pre-concentration and determination of lead by graphite furnace atomic absorption spectrometry were synthesized based on the batch solid phase extraction. For this purpose, copolymerization of Pb(II)–morin complex was performed using 4-vinylpyridine (VP), ethyleneglycoldimethacrylate (EDMA) and 2,2′-azobisisobutyronitrile (AIBN) as functional monomer, cross-linking agent and initiator, respectively. The polymer particles were characterized by FT-IR and X-ray diffraction (XRD). The optimization process was carried out using a two-level fractional factorial design and the Box–Behnken matrix. Four variables including pH, shaking time, mass of polymer and morin were selected as the factors affecting the optimization process. The obtained results using the two-level fractional factorial design indicated that pH, mass of polymer and morin were …
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