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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/37728
Title: 
Sorption and preconcentration of metal ions in ethanol solution with a silica gel surface chemically modified with benzimidazole
Author(s): 
Institution: 
  • Universidade Estadual de Campinas (UNICAMP)
  • Universidade de São Paulo (USP)
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal de São Carlos (UFSCar)
ISSN: 
0039-9140
Abstract: 
The adsorption isotherms of MCl(2) (M = Mn, Ni, Cu, Zn and Cd) and FeCl3 by silica gel chemically modified with benzimidazole molecules (= SI(CH2)(3)-NC7H5N) were studied in ethanol solution at 298 K. A column made of modified silica was used to adsorb and preconcentrate the above metal ions from ethanol solution. Elution was done with 0.1 M hydrochloric acid in an ethanol/water mixture having a mole fraction of water of 0.8. The material was applied in the preconcentration of metal ions from commercial ethanol normally used as engine fuel.
Issue Date: 
1-Nov-1995
Citation: 
Talanta. Amsterdam: Elsevier B.V., v. 42, n. 11, p. 1625-1630, 1995.
Time Duration: 
1625-1630
Publisher: 
Elsevier B.V.
Keywords: 
  • benzimidazole
  • preconcentration of heavy metals
  • adsorption isotherms
  • silica gel functionalized
Source: 
http://dx.doi.org/10.1016/0039-9140(95)01621-X
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/37728
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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