V
Valdinei S. Souza
Researcher at Instituto Federal Baiano
Publications - 8
Citations - 96
Valdinei S. Souza is an academic researcher from Instituto Federal Baiano. The author has contributed to research in topics: Graphite furnace atomic absorption & Vanadium. The author has an hindex of 5, co-authored 7 publications receiving 56 citations. Previous affiliations of Valdinei S. Souza include Federal University of Bahia.
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Multivariate optimization for the determination of cadmium and lead in crude palm oil by graphite furnace atomic absorption spectrometry after extraction induced by emulsion breaking
Gisseli Souza Valasques,Ana Maria Pinto dos Santos,Valdinei S. Souza,Valdinei S. Souza,Leonardo S. G. Teixeira,Juscelia Pereira dos Santos Alves,Mirela de Jesus Santos,Wagna Piler Carvalho dos Santos,Marcos A. Bezerra +8 more
TL;DR: In this paper, an analytical method for the determination of trace amounts of Cd and Pb in crude palm oil using graphite furnace atomic absorption spectrometry (GF AAS) after extraction induced by emulsion breaking (EIEB).
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Application of multivariate designs in the development of a method for vanadium determination in natural waters by HR-CS GF AAS after cloud-point extraction
TL;DR: In this paper, a method for trace vanadium determination in natural waters was developed using multivariate approaches (two-level fractional factorial, Doehlert and constrained mixture designs).
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Applications of emulsified systems in elemental analysis by spectroanalytical techniques
Gisseli Souza Valasques,Ana Maria Pinto dos Santos,Leonardo S. G. Teixeira,Uillian Mozart Ferreira da Mata Cerqueira,Valdinei S. Souza,Marcos A. Bezerra +5 more
TL;DR: In this paper, the characteristics of emulsified systems, their obtention, stabilization, properties and use in the development of analytical methods for elemental analysis in matrices with high organic content such as oils, fatty foods and fuel matrices are discussed.
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Analytical strategies for spectrometric determination of vanadium in samples of interest in the petroleum industry
Valdinei S. Souza,Leonardo S. G. Teixeira,Joaly Sthefane,Santos Oliveira Lima,Uillian Mozart Ferreira da Mata Cerqueira,Olívia Maria Cordeiro de Oliveira,Antônio Fernando de Souza Queiroz,Marcos A. Bezerra +7 more
TL;DR: Vanadium is a trace metal that is found in crude oil and its derivatives, in water from oil production, and in rocks as discussed by the authors, and it is used to determine the amount of vanadium in these materials.
Journal ArticleDOI
Determination of total contents and volatile and non-volatile fractions of nickel and vanadium in gasohol by graphite furnace atomic absorption spectrometry after extraction induced by emulsion-breaking
Valdinei S. Souza,Valdinei S. Souza,Leonardo S. G. Teixeira,Maria das Graças Andrade Korn,Uillian Mozart Ferreira da Mata Cerqueira,Marcos A. Bezerra +5 more
TL;DR: In this article, the authors used graphite furnace atomic absorption spectrometry (GF AAS) after extraction induced by emulsion-breaking (EIEB) to determine the total contents and non-volatile and volatile (by difference) fractions of nickel and vanadium.