1. Universidade Federal da Bahia

Navegando por Autor Ferreira, Sergio Luis Costa

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Data do documentoTítuloAutor(es)Tipo
Jan-2004Spectrophotometric determination of chromium in steel with 4-(2- thiazolylazo)-resorcinol (TAR) using microwave radiationCarvalho, Luciene Santos de; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Teixeira, Leonardo Sena GomesArtigo de Periódico
1999On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materialsCassella, Ricardo Jorgensen; Bitencourt, Denise Teixeira; Branco, Aline Garcia; Ferreira, Sergio Luis Costa; Jesus, Djane Santiago de; Carvalho, Marcelo Souza de; Santelli, Ricardo ErthalArtigo de Periódico
2001Flow injection determination of cobalt after its sorption onto polyurethane foam loaded with 2-(2-thiazolylazo)-p-cresol (TAC)Cassella, Ricardo Jorgensen; Salim, Veronica A.; Jesuı́no, Luciene S.; Santelli, Ricardo Erthal; Ferreira, Sergio Luis Costa; Carvalho, Marcelo Souza deArtigo de Periódico
1999Selectivity enhancement in spectrophotometry: on-line interference suppression using polyurethane foam minicolumn for aluminum determination with Methyl Thymol BlueCassella, Ricardo Jorgensen; Santelli, Ricardo Erthal; Branco, Aline Garcia; Lemos, Valfredo Azevedo; Ferreira, Sergio Luis Costa; Carvalho, Marcelo Souza deArtigo de Periódico
2004Optimization of the preconcentration system of cadmium with 1(2-thiazolylazo)-p-cresol using a knotted reactor and flame atomic absorption spectrometric detectionCerutti, S.; Ferreira, Sergio Luis Costa; Gásquez, J. A.; Olsina, R. A.; Martinez, L. D.Artigo 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
1993Simultaneous spectrophotometric determination of nickel and iron in copper-base alloy with bromo—PADAPCosta, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Barberino, Maria Goreth Matos de Andrade; Lôbo, Ivon PinheiroArtigo de Periódico
1999Uso de irradiação de microondas na determinação espectrofotométrica de cromo com EDTACosta, Antonio Celso Spinola; Assis, Júlio César Rosa; Torres, André Luís Carvalho; Ferreira, Sergio Luis Costa; Korn, Maria das Graças Andrade; Teixeira, Leonardo Sena GomesArtigo de Periódico
1995Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violetCosta, Antonio Celso Spinola; Teixeira, Leonardo Sena Gomes; Ferreira, Sergio Luis CostaArtigo de Periódico
2005Use of factorial design for optimization of microwave-assisted digestion of lubricating oilCosta, Letícia M.; Ferreira, Sergio Luis Costa; Nogueira, Ana Rita de Araujo; Nóbrega, Joaquim de AraújoArtigo de Periódico
2000Uso do violeta de alizarina N (AVN) como reagente espectrofotométrico na determinação de alumínioDantas, Alailson Falcão; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Method development for the determination of lead in wine using electrothermal atomic absorption spectrometry comparing platform and filter furnace atomizers and different chemical modifiersDessuy, Morgana B.; Vale, Maria Goreti R.; Souza, Anderson Santos; Ferreira, Sergio Luis Costa; Welz, Bernhard; Katskov, Dmitri A.Artigo 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
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
1992Adsorptive stripping voltammetric behaviour of copper complexes of some heterocyclic azo compoundsFarias, Pércio Augusto Mardini; Ferreira, Sergio Luis Costa; Ohara, Aniy K.; Bastos, Margarida Bethlem Rodrigues; Goulart, Mauricio SilveiraArtigo de Periódico
1993Adsorptive preconcentration for voltammetric measurements of trace levels of vanadium in the presence of copperFarias, Pércio Augusto Mardini; Ohara, Aniy K.; Takase, Iracema; Ferreira, Sergio Luis Costa; Gold, Jon S.Artigo de Periódico
2004Multivariate Optimization in Preconcentration Procedure for Manganese Determination in Seawater Samples by FAASFerreira, Adriana C.; Korn, Maria das Graças Andrade; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Pre-concentration procedure for determination of copper and zinc in food samples by sequential multi-element flame atomic absorption spectrometryFerreira, Hadla S.; Santos, Ana C. N.; Portugal, Lindomar Andrade; Costa, Antonio Celso Spinola; Miró, Manuel; Ferreira, Sergio Luis CostaArtigo de Periódico
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
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
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