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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
- Universidade Estadual de Campinas (UNICAMP)
- Universidade de São Paulo (USP)
- Universidade Estadual Paulista (UNESP)
- Universidade Federal de São Carlos (UFSCar)
- 0039-9140
- 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.
- 1-Nov-1995
- Talanta. Amsterdam: Elsevier B.V., v. 42, n. 11, p. 1625-1630, 1995.
- 1625-1630
- Elsevier B.V.
- benzimidazole
- preconcentration of heavy metals
- adsorption isotherms
- silica gel functionalized
- http://dx.doi.org/10.1016/0039-9140(95)01621-X
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/37728
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