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Data do documentoTítuloAutor(es)Tipo
2007Determination of zinc and copper in human hair by slurry sampling employing sequential multi-element flame atomic absorption spectrometryFerreira, Hadla S.; Santos, Walter Nei Lopes dos; Fiuza, Raigenis da Paz; Nóbrega, Joaquim de Araújo; Ferreira, Sergio Luis CostaArtigo de Periódico
2004Doehlert matrix: a chemometric tool for analytical chemistry—reviewFerreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos; Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida; Barros Neto, Benício de; Bosque-Sendra, Juan ManuelArtigo de Periódico
2007Review of procedures involving separation and preconcentration for the determination of cadmium using spectrometric techniquesKorn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa; Andrade, Jailson Bittencourt de; Lemos, Valfredo Azevedo; Santos, Walter Nei Lopes dos; Souza, Anderson Santos; Ferreira, Hadla Sousa; Rodrigues, Frederico de Medeiros; Pereira, Madson de Godoi; Silva, Erik Galvão Paranhos daArtigo de Periódico
2007Automatic on-line pre-concentration system using a knotted reactor for the FAAS determination of lead in drinking waterSouza, Anderson Santos; Brandão, Geovani Cardoso; Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo; Ganzarolli, Edgard Moreira; Bruns, Roy Edward; Ferreira, Sergio Luis CostaArtigo de Periódico
2011On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometrySantos, João Victor da Silva; Silva, O. B.; Araújo, André S.; Lemos, Valfredo Azevedo; Miró, Manuel; Ferreira, Sergio Luis Costa; Santos, Walter Nei Lopes dosArtigo de Periódico
2007On-line system for preconcentration and determination of metals in vegetables by Inductively Coupled Plasma Optical Emission SpectrometryBezerra, Marcos de Almeida; Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo; Korn, Maria das Graças Andrade; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Direct determination of iron and manganese in wine using the reference element technique and fast sequential multi-element flame atomic absorption spectrometryFerreira, Sergio Luis Costa; Souza, Anderson Santos; Brandão, Geovani Cardoso; Ferreira, Hadla S.; Santos, Walter Nei Lopes dos; Pimentel, M. Fernanda; Vale, Maria Goreti R.Artigo de Periódico
2013A review of reflux systems using cold finger for sample preparation in the determination of volatile elementsFerreira, Sergio Luis Costa; Silva, Laiana O. B.; Santana, Fernanda Alves de; S. Junior, Mario M.; Matos, Geraldo D.; Santos, Walter Nei Lopes dosArtigo de Periódico
2005Application of multivariate technique in method development for the direct determination of copper in petroleum condensate using graphite furnace atomic absorption spectrometrySantos, Walter Nei Lopes dos; Dias, Fábio de Souza; Fernandes, M. S.; Rebouças, Márcio das Virgens; Vale, Maria Goreti Rodrigues; Welz, Bernhard; Ferreira, Sergio Luis CostaArtigo de Periódico
2007Application of multivariate techniques for optimization of direct method for determination of lead in naphtha and petroleum condensate by electrothermal atomic absorption spectrometryDias, Fábio de Souza; Santos, Walter Nei Lopes dos; Costa, Antonio Celso Spinola; Welz, Bernhard; Vale, Maria Goreti R.; Ferreira, Sergio Luis CostaArtigo de Periódico

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