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Data do documentoTítuloAutor(es)Tipo
2003Arsenic determination in naphtha by electrothermal atomic absorption spectrometry after preconcentration using multiple injectionsRebouças, Márcio das Virgens; Ferreira, Sergio Luis Costa; Barros Neto, Benicio deArtigo de Periódico
2000Application of polyurethane foam loaded with BTAC in an on-line preconcentration system: cadmium determination by FAASLemos, Valfredo Azevedo; Santelli, Ricardo Erthal; Carvalho, Marcelo Souza de; Ferreira, Sergio Luis CostaArtigo de Periódico
1994Spectrophotometric and derivative spectrophotometric determination of aluminium with Hydroxynaphthol BlueFerreira, Sergio Luis Costa; Leite, Neide O.; Dantas, Alailson Falcão; Andrade, Jailson Bittencourt de; Costa, Antonio Celso SpinolaArtigo de Periódico
1994Use of 1-(2-thiazolylazo) 2-naphthol in rapid determination of iron in geological matricesFerreira, Sergio Luis Costa; Nano, Rita M. W.Artigo de Periódico
1998Quantitative separation of zinc traces from cadmium matrices by solid-phase extraction with polyurethane foamJesus, Djane Santiago de; Carvalho, Marcelo Souza de; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis CostaArtigo 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
1999Spectrophotometric Determination of Uranium Using 2-(2-Thiazolylazo)-p-Cresol (TAC) in the Presence of SurfactantsTeixeira, Leonardo Sena Gomes; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Freitas, Maria de Lourdes; Carvalho, Marcelo Souza deArtigo de Periódico
1988Spectrophotometric determination of nickel in copper-base alloy with 2-(2-thiazoly lazo)-p -cresolFerreira, Sergio Luis CostaArtigo de Periódico
1998Preconcentration and Determination of Copper and Zinc in Natural Water Samples by ICP-AES After Complexation and Sorption on Amberlite XAD-2Ferreira, Sergio Luis Costa; Santos, Hilda Costa dos; Ferreira, Janeide Reis; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola; Jesus, Djane Santiago deArtigo de Periódico
2013Determination of mercury in rice by MSFIA and cold vapour atomic fluorescence spectrometrySilva, Douglas Gonçalves da; Portugal, Lindomar Andrade; Serra, Antonio M.; Ferreira, Sergio Luis Costa; Cerdà, VictorArtigo de Periódico