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http://acervodigital.unesp.br/handle/11449/19026
- Title:
- Determination of metal ions in natural waters by flame-AAS after preconcentration on a 5-amino-1,3,4-thiadiazole-2-thiol modified silica gel.
- Universidade Estadual Paulista (UNESP)
- 0003-2719
- 5-amino-1,3,4-thiadiazole-2-thiol groups attached on a silica gel surface have been used for adsorption of Cd(II), Co(II), Cu(II), Fe(III), Ni(II), Pb(II) and Zn(II) from aqueous solutions. The adsorption capacities for each metal ion were (in mmol.g(-1)): Cd(II)= 0.35, Co(II)= 0.10, Cu(II)= 0.15, Fe(III)= 0.20, Hg(Il)= 0.46, Ni(II)= 0.16, Pb(II)= 0.13 and Zn(II)= 0.15. The modified silica gel was applied in the preconcentration and quantification of trace level metal ions present in water samples (river, and bog water).
- 1-Jan-1999
- Analytical Letters. New York: Marcel Dekker Inc., v. 32, n. 9, p. 1807-1820, 1999.
- 1807-1820
- Marcel Dekker Inc
- preconcentration
- 5-amino-1,3,4-thiadiazole-2-thiol modified silica gel
- water analysis
- http://dx.doi.org/10.1080/00032719908542935
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/19026
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