Abstract
Silica gel chemically modified with 2-Aminotiazole groups, abbreviated as SiAT, was usedfor preconcentration of copper, zinc, nickel and iron from kerosene, normally used as a engine fuel for
airplanes. Surface characteristics and surface area of the silica gel were obtained before and after chemical
modification using FT-IR, Kjeldhal and surface area analysis (B.E.T.). The retention and recovery of
the analyte elements were studied by applying batch and column techniques. The experimental
parameters, such as shaking time in batch technique, flow rate and concentration of the eluent (HCl-
0.25-2.00 mol L -1 ) and the amount of silica, on retention and elution, have been investigated. Detection
limits of the method for copper, iron, nickel and zinc are 0.77, 2.92, 1.73 and 0.097 mg L -1 , respectively.
The sorption-desorption of the studied metal ions made possible the development of a preconcentration
method for metal ions at trace level in kerosene using flame AAS for their quantification.
References
C. Airoldi, R. F. Farias, Química Nova 23 (4)
(2000) 496.
H.M. Al-Swaidan, Anal. Lett. 26 (1993) 141.
H.M. Al-Swaidan, At. Spectrosc. 14 (1993)170.
R.Q. Aucelio, A.J. Curtius, J. Anal. At.
Spectrom. 17 (2002) 242.
G. J. Antos, A.M. Aitani, J.M. Parrera, Sci.
and Tech. 1995.
L. A. Belyakova, A. M. Varvarin, Coll. and
Surf. A: Physicochemical and Engineering Aspects
(1999) 285.
S. Brunauer, P. H. Emmet, E. Teller, J.
American Chem. Soc.,60 (1938) 309.
V. Camel, Spectroc. Acta Part B 58 (2003)
N. L. Dias Filho, Y. Gushiken, W. L. Polito, J.
C. Moreira, E. O. Ehirim, Talanta 42 (1995) 1031.
D. K. Tanaka, S. Wolynec, Proc. of IXth
National Seminar on Corrosion, Rio de Janeiro,
dec. 8-12, 1982.
C Ekinci, Ü. Köklü, Spectroc. Acta Part B 55
(2000) 1491.
S. Faramawy, A. M. El-Fadly, A. W. El-
Naggar, A. M. Youssef, Surf. and Coat. Tech. 90
(1997) 53.
C. Fulcker, Anal. Chim. Acta 129 (1981) 29.
K. E. Giller, E. Witter, S. P. Mcgrath, Soil
Biol. Biochem. 30(10/11) (1998)1389,.
L. T. Kubota, J. C. Moreira, Y. Gushiken,
Analyst 114 (1989) 1385.
D. M. Little, in: Catalytic Reforming, 1985.
W. X. Ma, F. Liu, K. A. Li, W. Chen, S. Y.
Tong, Anal. Chim. Acta 416 (2000) 191.
F. V. Moraes, I. L. Alcântara, P. S. Roldan,
G. R. Castro, M. A. L. Margionte, P. M. Padilha,
Ecl. Quím., v.28(1) (2003) 9.
N. L. D. K Tanaka, S. Wolynec, S. Fairbanks,
F. B. P. Pinto VIIIth National Seminar on
Corrosion, Rio de Janeiro, dec. 5-10, 1981.
Operation manual atomic absorption
spectrophotometer AA-6800, Shimadzu [s.1:s.n.],
P. M. Padilha, L. A. Gomes, C. C. F. Padilha,
J. C. Moreira, N. L. Dias Filho, Anal. Lett. 32
(1999)1807.
A. G. S. Prado, C. Airoldi, Pest. Manag. Sci.
(2000) 419.
G. S. A. Prado, C. Airoldi, Anal. Chim. Acta
(2000) 201.
A. G. S. Prado, C. Airoldi, J. of Coll. and
Interf. Sci.,236 (2001) 161.
P. S. Roldan, I. L. Alcântara, G. R. Castro, J.
C. Rocha, C. C. F. Padilha, P. M. Padilha, Anal.
and Bio. Chem. 375 (2003) 574.
T. D. Saint’pierre, L. F. Dias, D. Pozebon, R.
Q. Aucelio, A. J. Curtius, B. Welz, Spectroc. Acta
Part B 57 (2002) 1991.
G. Schwarzenback, H. A. Flaschka,
Complexometric titrations, 1969.
I.A. Silva, R.C. Campos, A.J. Curtius, S.M.
Sella, J. Anal. At. Spectrom. 8 (1993) 749.
G. Socrates, John Wiley & Sons, 1996.
V. Sychra, I. Lang, G. Sebor, Prog. Anal.
Atom. Spect. 4 (1981) 341.
E. F. Vasant, P. V. D. Voort, K. C. Vrancken,
Elsevier, 93, 1995.
G. T. Wei, Z. Yang, C. J. Chen, Anal. Chim.
Acta, 488 (2003) 183.
H. Walker, J. H. Runnels, D. Merryfield, Anal.
Chim. Acta 48 (1976) 2056.

This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2018 Eclética Química Journal