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Data do documentoTítuloAutor(es)Tipo
15-Fev-2005Optimisation of focused-microwave assisted digestion procedure for Kjeldahl nitrogen determination in bean samples by factorial design and Doehlert designKorn, Maria das Graças Andrade; Santos, Wagna P. C. dos; Korn, Mauro; Ferreira, Sergio Luis CostaArtigo de Periódico
2002Application of factorial designs and Doehlert matrix in optimization of experimentalvariabl es associated with the preconcentration and determination of vanadium and copper in seawater by inductively coupled plasma optical emission spectrometryFerreira, Sergio Luis Costa; Queiroz, Adriana Santana; Fernandes, Marcelo Santiago; Hilda Costa dos Santos, TalmaArtigo de Periódico
2004Characterization and determination of the thermodynamic and kinetic properties of the adsorption of the molybdenum(VI)–calmagite complex onto active carbonFerreira, Sergio Luis Costa; Andrade, Heloysa Martins Carvalho; Talma, Hilda Costa dos SantosArtigo de Periódico
2000Application of polyurethane foam loaded with BTAC in an on-line preconcentration system: cadmium determination by FAASLemos, Valfredo Azevedo; Santelli, Ricardo Erthal; Carvalho, Marcelo Souza de; Ferreira, Sergio Luis CostaArtigo de Periódico
2001On-line preconcentration system for nickel determination in food samples by flame atomic absorption spectrometryFerreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos; Lemos, Valfredo AzevedoArtigo de Periódico
2005Use of experimental design in the optimisation of a solid phase preconcentration system for Cobalt determination by GFAASMatos, G. D.; Tarley, César Ricardo Teixeira; Ferreira, Sergio Luis Costa; Arruda, Marco Aurélio ZezziArtigo de Periódico
2003Use of factorial design and Doehlert matrix for multivariate optimisation of an on-line preconcentration system for lead determination by flame atomic absorption spectrometryFerreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos; Bezerra, Marcos de Almeida; Lemos, Valfredo Azevedo; Bosque-Sendra, Juan ManuelArtigo de Periódico
2007Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometrySantos, Denilson S. S. dos; Teixeira, Alete Paixão; Barbosa, José Tiago Pereira; Ferreira, Sergio Luis Costa; Korn, Maria das Graças Andrade; Teixeira, Leonardo Sena GomesArtigo de Periódico
2005Application of Box–Behnken design in the optimisation of an on-line pre-concentration system using knotted reactor for cadmium determination by flame atomic absorption spectrometrySouza, Anderson Santos; Santos, Walter Nei Lopes dos; Ferreira, Sergio Luis CostaArtigo de Periódico
2006Separation and preconcentration procedures for the determination of lead using spectrometric techniques: A reviewKorn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa; Andrade, Jailson Bittencourt de; Jesus, Djane S. de; Lemos, Valfredo Azevedo; Bandeira, Marcus Luciano Souza de Ferreira; Santos, Walter Nei Lopes dos; Bezerra, Marcos de Almeida; Amorim, Fábio Alan Carqueija; Souza, Anderson SantosArtigo de Periódico