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Data do documento	Título	Autor(es)	Tipo
1992	Sequential determination of iron and titanium by flow-injection analysis	Barberino, Maria Goreth Matos de Andrade; Ferreira, Sergio Luis Costa; Santos, B. F.; Costa, Antonio Celso Spinola	Artigo de Periódico
1997	Determination of Iron in Alkaline Salts by ICP-AES Using 1-(2-Thiazolylazo)-p-Cresol (TAC) for Preconcentration and Separation	Ferreira, Sergio Luis Costa; Queiroz, Adriana Santana; Assis, Júlio César Rosa; Korn, Maria das Graças Andrade; Costa, Antonio Celso Spinola	Artigo de Periódico
1993	2-(2-Thiazolylazo)-p-Cresol (TAC) as a Reagent for the Spectrophotometric Determination of Titanium (IV)	Ferreira, Sergio Luis Costa; Costa, Antonio Celso Spinola; Andrade, Henrique A. S.	Artigo de Periódico
1996	Spectrophotometric and derivative spectrophotometric determination of nickel with hydroxynaphthol blue	Ferreira, Sergio Luis Costa; Santos, Bruno F.; Andrade, Jailson Bittencourt de; Costa, Antonio Celso Spinola	Artigo de Periódico
1998	2-(2-Thiazolylazo)-p-cresol as a spectrophotometric reagent for vanadium determination in the presence of ascorbic acid	Teixeira, Leonardo Sena Gomes; Costa, Antonio Celso Spinola; Queiroz, Adriana Santana; Amorim, Adelaide Maria Mendonça; Bomfim, Osvaldo N.; Ferreira, Sergio Luis Costa	Artigo de Periódico
1993	Simultaneous spectrophotometric determination of nickel and iron in copper-base alloy with bromo—PADAP	Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Barberino, Maria Goreth Matos de Andrade; Lôbo, Ivon Pinheiro	Artigo de Periódico
1999	On-line preconcentration system for ¯ame atomic absorption spectrometry using unloaded polyurethane foam: determination of zinc in waters and biological materials	Cassella, Ricardo Jorgensen; Bitencourt, Denise Teixeira; Branco, Aline Garcia; Ferreira, Sergio Luis Costa; Jesus, Djane Santiago de; Carvalho, Marcelo Souza de; Santelli, Ricardo Erthal	Artigo de Periódico
1999	Nickel determination in saline matrices by ICP-AES after sorption on Amberlite XAD-2 loaded with PAN	Ferreira, Sergio Luis Costa; Brito, Cristiane F. de; Dantas, Alailson Falcão; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola	Artigo de Periódico
1994	Use of 1-(2-thiazolylazo) 2-naphthol in rapid determination of iron in geological matrices	Ferreira, Sergio Luis Costa; Nano, Rita M. W.	Artigo de Periódico
1997	Sensitive spectrophotometric determination of ascorbic acid in fruit juices and pharmaceutical formulations using 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (Br-PADAP)	Ferreira, Sergio Luis Costa; Bandeira, Marcus Luciano Souza de Ferreira; Lemos, Valfredo Azevedo; Santos, Hilda Costa dos; Costa, Antonio Celso Spinola; Jesus, Djane S. de	Artigo de Periódico