화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.2, 638-643, March, 2014
DOI10.1016/j.jiec.2013.05.027  Export Citation
Multiwalled carbon nanotube impregnated with bis(5-bromosalicylidene)-1,3-propandiamine for enrichment of Pb2+ ion
M. Ghaedi1, †, P. Mokhtari1, M. Montazerozohori1, A. Asghari2, 3, and M. Soylak4
  • 1Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran
  • 2Chemistry Department, Semnan University, Semnan, Iran
  • 3Department of Chemistry, Semnan University, Semnan 35195-363, Iran
  • 4Chemistry Department, University of Erciyes, 38039 Kayseri, Turkey
E-mail:
Multiwalled carbon nanotube impregnated by bis(5-bromosalicylidene)-1,3-propandiamine(BBSPN) was synthesized and applied as adsorbent for the enrichment of trace amount of Pb2+ ion subsequent their determination by flame atomic absorption spectroscopy (FAAS). The influences of the analytical parameters including pH, amount of ligand and adsorbent, type and condition of eluent and sample volume on the Pb2+ ion recoveries were investigated. The optimum pH value for the separation of Pb2+ ion on the new sorbent was 6 and the adsorbed Pb2+ ion could be completely eluted by using 5.0 mL of 2.0 mol L^(-1) HNO3 solutions with 0.015 g of ligand and 0.100 g of adsorbent. Common coexisting ions did not interfere with the separation and determination of target metal ions. The method has high sorption. preconcentration efficiency with relative standard deviation less than 4.0%, especially for lead determination in radish, vegetable, potato, tomato and cheeps.
Keywords:Multiwalled carbon nanotube;Atomic absorption spectroscopy;Solid phase extraction;Lead(II) ion;Enrichment
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