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Issue DateTitleAuthor(s)
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 Gomes
Jul-2009Speciation of chromium in river water samples contaminated with leather effluents by flame atomic absorption spectrometry after separation/preconcentration by cloud point extractionMatos, Geraldo D.; Reis, Edmagno B. dos; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa
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 A.; Costa, Antonio Celso Spinola; Miró, Manuel; Ferreira, Sergio Luis Costa
2000Uso do violeta de alizarina N (AVN) como reagente espectrofotométrico na determinação de alumínioDantas, Alailson Falcão; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa
2000Copper determination in natural water samples by using FAAS after preconcentration onto amberlite XAD-2 loaded with calmagiteFerreira, Sergio Luis Costa; Ferreira, Janeide R.; Dantas, Alailson Falcão; Lemos, Valfredo Azevedo; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola
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 Costa
2001Solid phase spectrophotometry for the determination of cobalt in pharmaceutical preparationsTeixeira, Leonardo Sena Gomes; Costa, Antonio Celso Spinola; Assis, Júlio César Rosa; Ferreira, Sergio Luis Costa; Korn, Mauro
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 Costa
2000An on-line continuous flow system for copper enrichment and determination by flame atomic absorption spectroscopyFerreira, Sergio Luis Costa; Lemos, Valfredo Azevedo; Moreira, Barbara C.; Costa, Antonio Celso Spinola; Santelli, Ricardo Erthal
2000Nickel and zinc determination by flow-injection solid-phase spectrophotometry exploiting different sorption ratesTeixeira, Leonardo Sena Gomes; Rocha, Fábio Rodrigo Piovezani; Korn, Mauro; Reis, Boaventura F.; Ferreira, Sergio Luis Costa; Costa, Antonio Celso Spinola


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