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Data do documentoTítuloAutor(es)Tipo
2002Application of Doehlert matrix and factorial designs in optimization of experimental variables associated with preconcentration and determination of molybdenum in sea-water by inductively coupled plasma optical emission spectrometryFerreira, Sergio Luis Costa; Santos, Hilda Costa dos; Carvalho, Marcelo Souza de; Fernandes, Marcelo SantiagoArtigo de Periódico
2006Statistical design-principal component analysis optimization of a multiple response procedure using cloud point extraction and simultaneous determination of metals by ICP OESBezerra, Marcos de Almeida; Bruns, Roy Edward; Ferreira, Sergio Luis CostaArtigo de Periódico
2005The use of water soluble tertiary amine reagent for solubilization and metal determination in fish muscle tissueMelo, Maria H. A.; Costa, Antonio Celso Spinola; Nóbrega, Joaquim de Araújo; Ferreira, Sergio Luis CostaArtigo de Periódico
19932-(2-Thiazolylazo)-p-Cresol (TAC) as a Reagent for the Spectrophotometric Determination of Titanium (IV)Ferreira, Sergio Luis Costa; Costa, Antonio Celso Spinola; Andrade, Henrique A. S.Artigo de Periódico
1998Spectrophotometric Determination of Aluminium in Iron Ores Using Solid-Phase ExtractionFerreira, Sergio Luis Costa; Lemos, Valfredo Azevedo; Costa, Antonio Celso Spinola; Jesus, Djane Santiago de; Carvalho, Marcelo Souza deArtigo 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
1992Sequential determination of iron and titanium by flow-injection analysisBarberino, Maria Goreth Matos de Andrade; Ferreira, Sergio Luis Costa; Santos, B. F.; Costa, Antonio Celso SpinolaArtigo de Periódico
2005Method development for the determination of manganese in wheat flour by slurry sampling flame atomic absorption spectrometryAraujo, Rennan Geovanny Oliveira; Dias, Fábio de Souza; Macedo, Samuel Marques; 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
19912-(2-Thiazolylazo)-p-cresol (TAC) as a reagent for the spectrophotometric determination of indium(III)Ferreira, Sergio Luis Costa; Costa, Antonio Celso Spinola; Andrade, H. A. S.Artigo de Periódico

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