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- Publications
- Influence
Response surface methodology (RSM) as a tool for optimization in analytical chemistry.
- M. A. Bezerra, R. Santelli, E. P. Oliveira, Leonardo S. Villar, Luciane Amélia Escaleira
- Chemistry, Medicine
- Talanta
- 15 September 2008
A review about the application of response surface methodology (RSM) in the optimization of analytical methods is presented. The theoretical principles of RSM and steps for its application are… Expand
Cloud Point Extraction as a Procedure of Separation and Pre‐Concentration for Metal Determination Using Spectroanalytical Techniques: A Review
- M. A. Bezerra, M. Arruda, S. Ferreira
- Chemistry
- 1 November 2005
Abstract Cloud point extraction is a separation and preconcentration procedure that has been extensively applied for trace metal determination in several different matrices. Its major advantages are… Expand
Separation and preconcentration procedures for the determination of lead using spectrometric techniques: a review.
- M. Korn, J. B. Andrade, +7 authors S. Ferreira
- Chemistry, Medicine
- Talanta
- 15 March 2006
Lead is recognized worldwide as a poisonous metal. Thus, the determination of this element is often required in environmental, biological, food and geological samples. However, these analyses are… Expand
Use of factorial design and Doehlert matrix for multivariate optimisation of an on-line preconcentration system for lead determination by flame atomic absorption spectrometry
- S. Ferreira, W. N. L. dos Santos, M. A. Bezerra, V. A. Lemos, J. M. Bosque-Sendra
- Chemistry, Medicine
- Analytical and bioanalytical chemistry
- 29 January 2003
A system for on-line preconcentration and determination of lead by flame atomic absorption spectrometry (FAAS) was proposed. It was based on the sorption of lead(II) ions on a minicolumn of… Expand
Development of a new sequential injection in-line cloud point extraction system for flame atomic absorption spectrometric determination of manganese in food samples.
- V. A. Lemos, Patrícia Xavier Baliza, Anaildes Lago de Carvalho, Rafael Vasconcelos Oliveira, L. S. Teixeira, M. A. Bezerra
- Chemistry, Medicine
- Talanta
- 19 October 2008
A preconcentration method for manganese determination by sequential injection cloud point extraction with subsequent detection by flame atomic absorption spectrometry (FAAS) has been developed. The… Expand
Chemometric tools in electroanalytical chemistry: Methods for optimization based on factorial design and response surface methodology
- C. R. Tarley, Gustavo Silveira, +5 authors S. Ferreira
- 1 May 2009
Abstract The aim of this paper is to give a brief overview of chemometric techniques based on factorial designs and response surface methodologies used in the optimization of electroanalytical… Expand
A preconcentration system for determination of copper and nickel in water and food samples employing flame atomic absorption spectrometry.
- M. Tuzen, M. Soylak, D. Çıtak, H. S. Ferreira, M. Korn, M. A. Bezerra
- Chemistry, Medicine
- Journal of hazardous materials
- 15 March 2009
A separation/preconcentration procedure using solid phase extraction has been proposed for the flame atomic absorption spectrometric determination of copper and nickel at trace level in food samples.… Expand
A Pre-Concentration Procedure Using Cloud Point Extraction for the Determination of Uranium in Natural Water
- H. S. Ferreira, M. A. Bezerra, S. L. Costa Ferreira
- Chemistry
- 9 February 2006
Abstract.A pre-concentration procedure using cloud point extraction is presented for the determination of uranium in natural water using molecular absorption spectrometry. The ligand used was… Expand
On-line preconcentration using a resin functionalized with 3,4-dihydroxybenzoic acid for the determination of trace elements in biological samples by thermospray flame furnace atomic absorption…
- V. A. Lemos, M. A. Bezerra, F. A. C. Amorim
- Chemistry, Medicine
- Journal of hazardous materials
- 15 September 2008
In the present paper, an on-line preconcentration procedure for determination of cadmium, copper and zinc by thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS) is proposed.… Expand
Simplex optimization: A tutorial approach and recent applications in analytical chemistry
- M. A. Bezerra, Q. O. Santos, A. G. Santos, C. G. Novaes, S. Ferreira, V. S. Souza
- Computer Science
- 2016
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