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Results 1-10 of 38 (Search time: 0.009 seconds).
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Issue DateTitleAuthor(s)Type
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 SpinolaArtigo 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
1995Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violetCosta, Antonio Celso Spinola; Teixeira, Leonardo Sena Gomes; Ferreira, Sergio Luis CostaArtigo de Periódico
19982-(2-Thiazolylazo)-p-cresol as a spectrophotometric reagent for vanadium determination in the presence of ascorbic acidTeixeira, Leonardo Sena Gomes; Costa, Antonio Celso Spinola; Queiroz, Adriana Santana; Amorim, Adelaide Maria Mendonça; Bomfim, Osvaldo N.; Ferreira, Sergio Luis CostaArtigo de Periódico
1997Determination of Iron in Alkaline Salts by ICP-AES Using 1-(2-Thiazolylazo)-p-Cresol (TAC) for Preconcentration and SeparationFerreira, Sergio Luis Costa; Queiroz, Adriana Santana; Assis, Júlio César Rosa; Korn, Maria das Graças Andrade; Costa, Antonio Celso SpinolaArtigo de Periódico
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 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
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
1992Sequential determination of iron and titanium by flow-injection analysisBarberino, Maria Goreth Matos de Andrade; Ferreira, Sergio Luis Costa; Santos, B. F.; Costa, Antonio Celso SpinolaArtigo de Periódico
1998Spectrophotometric Determination of Aluminium in Iron Ores Using Solid-Phase ExtractionFerreira, Sergio Luis Costa; Lemos, Valfredo Azevedo; Costa, Antonio Celso Spinola; Jesus, Djane Santiago de; Carvalho, Marcelo Souza deArtigo de Periódico