G
Geraldo D. Matos
Researcher at Federal University of Bahia
Publications - 28
Citations - 2922
Geraldo D. Matos is an academic researcher from Federal University of Bahia. The author has contributed to research in topics: Detection limit & Atomic absorption spectroscopy. The author has an hindex of 13, co-authored 27 publications receiving 2442 citations. Previous affiliations of Geraldo D. Matos include State University of Campinas.
Papers
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Journal ArticleDOI
Box-Behnken design: An alternative for the optimization of analytical methods
Sergio Luis Costa Ferreira,Roy Edward Bruns,Hadla S. Ferreira,Geraldo D. Matos,Jorge Mauricio David,Geovani C. Brandao,E.G.P. da Silva,Lindomar A. Portugal,P.S. dos Reis,Anderson Santos Souza,W. N. L. dos Santos +10 more
TL;DR: The present paper describes fundamentals, advantages and limitations of the Box-Behnken design for the optimization of analytical methods, and establishes also a comparison between this design and composite central, three-level full factorial and Doehlert designs.
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Chemometric tools in electroanalytical chemistry: Methods for optimization based on factorial design and response surface methodology
César Ricardo Teixeira Tarley,Gustavo Silveira,Walter Nei Lopes dos Santos,Geraldo D. Matos,Erik Galvão Paranhos da Silva,Marcos A. Bezerra,Manuel Miró,Sergio Luis Costa Ferreira +7 more
TL;DR: In this article, a brief overview of chemometric techniques based on factorial designs and response surface methodologies used in the optimization of electroanalytical methods is given for stripping analyses and flow injection systems with amperometric detection.
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Slurry Sampling—An Analytical Strategy for the Determination of Metals and Metalloids by Spectroanalytical Techniques
Sergio Luis Costa Ferreira,Manuel Miró,Erik Galvão Paranhos da Silva,Geraldo D. Matos,Pedro Sanches dos Reis,Geovani C. Brandao,Walter Nei Lopes dos Santos,Álvaro T. Duarte,Maria Goreti R. Vale,Rennan Geovanny Oliveira Araujo +9 more
TL;DR: In this article, the state-of-the-art of slurry sampling as an approach for the minimization of sample preparation prior to the determination of metals and metalloids in complex matrices by spectroanalytical techniques is discussed.
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Speciation of chromium in river water samples contaminated with leather effluents by flame atomic absorption spectrometry after separation/preconcentration by cloud point extraction
TL;DR: In this article, a cloud point extraction (CPE) system has been proposed for determination of species de chromium in the natural water samples, Cr(III) and Cr(VI).
Journal ArticleDOI
A review of reflux systems using cold finger for sample preparation in the determination of volatile elements
Sergio Luis Costa Ferreira,Laiana O.B. Silva,F. A. Santana,Mario M.S. Junior,Geraldo D. Matos,Walter Nei Lopes dos Santos +5 more
TL;DR: Advantages, limitations and applications of a reflux system (cold finger) employed for sample preparation during determination of volatile elements are presented and other techniques employed in the determination of volatility are discussed and compared.