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Data do documentoTítuloAutor(es)Tipo
2004Application of factorial design and Doehlert matrix in the optimisation of instrumental parameters for direct determination of silicon in naphtha using graphite furnace atomic absorption spectrometryAmaro, Joana Angélica de Azerêdo; Ferreira, Sergio Luis CostaArtigo de Periódico
2005Behaviour of chemical modifiers in the determination of arsenic by electrothermal atomic absorption spectrometry in petroleum productsRebouças, Márcio das Virgens; Ferreira, Sergio Luis Costa; Barros Neto, Benicio deArtigo de Periódico
1999Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparationsTeixeira, Leonardo Sena Gomes; Rocha, Fábio Rodrigo Piovezani; Korn, Mauro; Reis, Boaventura F.; Ferreira, Sergio Luis Costa; Costa, Antonio Celso SpinolaArtigo de Periódico
2009Development of a non-chromatographic method for the speciation analysis of inorganic antimony in mushroom samples by hydride generation atomic fluorescence spectrometryFerreira, Hadla Sousa; Ferreira, Sergio Luis Costa; Cervera, M. Luisa; Guardia, Miguel de laArtigo 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
2010Use of multivariate analysis techniques for the characterization of analytical results for the determination of the mineral composition of kaleFadigas, Joelma C.; Santos, Ana Maria Pinto dos; Jesus, Raildo M. de; Lima, Daniel C.; Fragoso, Wallace D.; David, Jorge Mauricio; Ferreira, Sergio Luis CostaArtigo de Periódico
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
1998Spectrophotometric determination of vanadium(IV) in the presence of vanadium(V) using Br-PADAPCosta, Antonio Celso Spinola; Teixeira, Leonardo Sena Gomes; Jaeger, Helena Valli; Ferreira, Sergio Luis CostaArtigo de Periódico
Jul-2011Slurry sampling and high-resolution continuum source flame atomic absorption spectrometry using secondary lines for the determination of Ca and Mg in dairy productsBrandão, Geovani Cardoso; Matos, Geraldo D.; Ferreira, Sergio Luis CostaArtigo de Periódico
2004Use of modified rice husks as a natural solid adsorbent of trace metals: characterisation and development of an on-line preconcentration system for cadmium and lead determination by FAASTarley, César Ricardo Teixeira; Ferreira, Sergio Luis Costa; Arruda, Marco Aurélio ZezziArtigo de Periódico

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