Browsing by Author Costa, Antonio Celso Spinola

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Issue DateTitleAuthor(s)Type
2002Determinação de Mn, Cu e Zn em matrizes salinas após separação e pré-concentração usando amberlite XAD-7 impregnada com vermelho de Alizarina SSantos Junior, Aníbal de Freitas; Korn, Maria das Graças Andrade; Jaeger, Helena Valli; Silva, Nívia Maria Silveira; Costa, Antonio Celso SpinolaArtigo de Periódico
2008Use of Doehlert design for optimizing the digestion of beans for multi-element determination by inductively coupled plasma optical emission spectrometrySantos, Wagna Piler C. dos; Gramacho, Diogenes R.; Teixeira, Alete Paixão; Costa, Antonio Celso Spinola; Korn, Maria das Graças AndradeArtigo de Periódico
2006An on-line pre-concentration system for determination of cadmium in drinking water using FAASSantos, Walter Nei Lopes dos; Costa, Jorge L. O.; Araujo, Rennan Geovanny Oliveira; Jesus, Djane S. de; Costa, Antonio Celso SpinolaArtigo de Periódico
2005Determination of copper in powdered chocolate samples by slurry-sampling flame atomic-absorption spectrometrySantos, Walter Nei Lopes dos; Silva, Erik Galvão Paranhos da; Fernandes, Marcelo Santiago; Araujo, Rennan Geovanny Oliveira; Costa, Antonio Celso SpinolaArtigo de Periódico
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 SpinolaArtigo de Periódico
2011Use of nitroanilines for spectrophotometric determination of ethinylestradiol in pharmaceutical formulationsTeixeira, Leonardo Sena Gomes; Teixeira, Maiana de Araujo; Bueno, Admar Jorge Machado; Brito, Cristiane F. de; Dantas, Alailson Falcão; Costa, Antonio Celso SpinolaArtigo de Periódico
1999Flow-injection solid-phase spectrophotometry for the determination of zinc in pharmaceutical preparationsTeixeira, Leonardo Sena Gomes; Rocha, Fábio Rodrigo Piovezani; Korn, Mauro; Reis, Boaventura F.; Ferreira, Sergio Luis Costa; Costa, Antonio Celso SpinolaArtigo de Periódico
1998ICP–AES determination of small amounts of zinc in copper-base alloys after separation by adsorption of the zinc–TAN complex on Sep Pak C18 cartridgesTeixeira, Leonardo Sena Gomes; Reis, José Oscar N.; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Korn, Maria das Graças Andrade; Andrade, Jailson Bittencourt 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
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
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, MauroArtigo de Periódico
2002Flow-injection solid phase partial least-squares spectrophotometric simultaneous determination of iron, nickel and zincTeixeira, Leonardo Sena Gomes; Costa, Antonio Celso Spinola; Garrigues, Salvador; Guardia, Miguel de laArtigo de Periódico
2006Determinação espectrofotométrica simultânea de cobre e ferro em álcool etílico combustível com reagentes derivados da ferroínaTeixeira, Leonardo Sena Gomes; Brasileiro, João F.; Borges Junior, Mário Marques; Cordeiro, Paulo Wilson Louzado; Rocha, Sarah A. N.; Costa, Antonio Celso SpinolaArtigo de Periódico
2004Determination of formaldehyde in Brazilian alcohol fuels by flow-injection solid phase spectrophotometryTeixeira, Leonardo Sena Gomes; Leão, Elsimar S.; Dantas, Alailson Falcão; Pinheiro, Heloísa Lúcia C.; Costa, Antonio Celso Spinola; Andrade, Jailson Bittencourt deArtigo de Periódico