Browsing by Author Ferreira, Sergio Luis Costa

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Issue DateTitleAuthor(s)Type
2004Application of factorial design and Doehlert matrix in the optimisation of instrumental parameters for direct determination of silicon in naphtha using graphite furnace atomic absorption spectrometryAmaro, Joana Angélica de Azerêdo; Ferreira, Sergio Luis CostaArtigo de Periódico
2007Methods for vanadium determination in fuel oil by GF AAS with microemulsification and acid digestion samplingAmorim, Fábio Alan Carqueija; Lima, Daniel C.; Amaro, Joana Angélica de Azerêdo; Vale, Maria Goreti R.; Ferreira, Sergio Luis CostaArtigo de Periódico
28-Feb-2005Determination of cadmium and lead in table salt by sequential multi-element flame atomic absorption spectrometryAmorim, Fábio Alan Carqueija; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Espectrometria de absorção atômica: o caminho para determinações multi-elementaresAmorim, Fábio Alan Carqueija; Lôbo, Ivon Pinheiro; Santos, Vera Lúcia Câncio Souza; Ferreira, Sergio Luis CostaArtigo de Periódico
1997Spectrophotometric and inductively coupled plasma atomic emission spectrometric determination of titanium in ilmenites after rapid dissolution with phosphoric acidAndrade, Jailson Bittencourt de; Nunes, Genebaldo S.; Veiga, Merilio P.; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Amorim, Adelaide Maria Mendonça; Reis, Selma T.Artigo de Periódico
2018Multivariate optimization of a procedure employing microwave-assisted digestion for the determination of nickel and vanadium in crude oil by ICP OES.Anjos, Shirlei; Alves, Jeferson; Soares, Sarah; Araujo, Rennan; Oliveira, Olivia; Queiroz, Antonio Fernando; Ferreira, Sergio Luis CostaArtigo de Periódico
2011Use of Multivariate Analysis Techniques for Evaluation of Analytical Data—Determination of the Mineral Composition of Cabbage (Brassica oleracea)Anunciação, Daniela Santos; Leao, Danilo J.; Ferreira, Sergio Luis Costa; Jesus, Raildo M. deArtigo de Periódico
2013Determination of silver in airborne particulate matter collected on glass fiber filters using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid samplingAraujo, Rennan Geovanny Oliveira; Vignola, Fabíola; Castilho, Ivan N. B.; Welz, Bernhard; Vale, Maria Goreti R.; Smichowski, Patricia; Ferreira, Sergio Luis Costa; Becker-Ross, HelmutArtigo de Periódico
2005Method development for the determination of manganese in wheat flour by slurry sampling flame atomic absorption spectrometryAraujo, Rennan Geovanny Oliveira; Dias, Fábio de Souza; Macedo, Samuel Marques; Santos, Walter Nei Lopes dos; Ferreira, Sergio Luis CostaArtigo de Periódico
2006Method development for the determination of manganese in wheat flour by slurry sampling flame atomic absorption spectrometryAraujo, Rennan Geovanny Oliveira; Dias, Fábio de Souza; Macedo, Samuel Marques; Santos, Walter Nei Lopes dos; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Mineral composition of wheat flour consumed in Brazilian citiesAraujo, Rennan Geovanny Oliveira; Macedo, Samuel Marques; Korn, Maria das Graças Andrade; Pimentel, Maria Fernanda; Bruns, Roy Edward; Ferreira, Sergio Luis CostaArtigo de Periódico
2008Comparison of direct solid sampling and slurry sampling for the determination of cadmium in wheat flour by electrothermal atomic absorption spectrometryAraujo, Rennan Geovanny Oliveira; Oleszczuk, Nédio; Rampazzo, Roger T.; Costa, Pedro A.; Silva, Márcia M.; Vale, Maria Goreti R.; Welz, Bernhard; Ferreira, Sergio Luis CostaArtigo de Periódico
May-2011Determination of mercury in airborne particulate matter collected on glass fiber filters using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid samplingAraujo, Rennan Geovanny Oliveira; Vignola, Fabíola; Castilho, Ivan N. B.; Borges, Daniel L. G.; Welz, Bernhard; Vale, Maria Goreti R.; Smichowski, Patricia; Ferreira, Sergio Luis Costa; Becker-Ross, HelmutArtigo de Periódico
2013Determination of silver in airborne particulate matter collected on glass fiber filters using high-resolution continuum source graphite furnace atomic absorption spectrometry and direct solid samplingAraujo, Rennan Geovanny Oliveira; Vignola, Fabíola; Castilho, Ivan N. B.; Welz, Bernhard; Vale, Maria Goreti R.; Smichowski, Patricia; Ferreira, Sergio Luis Costa; Becker-Ross, HelmutArtigo de Periódico
2012Factorial and Doehlert designs in the optimization of a separation procedure using polyurethane foam as a solid phase extractant for platinum determination in ferrous matrices using inductively coupled plasma optical emission spectroscopyAraújo, Neyla Margarida Lopo de; Ferreira, Sergio Luis Costa; Santos, Hilda Costa dos; Jesus, Djane Santiago de; Bezerra, Marcos de AlmeidaArtigo 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
2006Statistical design-principal component analysis optimization of a multiple response procedure using cloud point extraction and simultaneous determination of metals by ICP OESBezerra, Marcos de Almeida; Bruns, Roy Edward; Ferreira, Sergio Luis CostaArtigo de Periódico
2004Doehlert matrix for optimisation of procedure for determination of nickel in saline oil-refinery effluents by use of flame atomic absorption spectrometry after preconcentration by cloud-point extractionBezerra, Marcos de Almeida; Conceição, André L. B.; Ferreira, Sergio Luis CostaArtigo de Periódico
2006Multivariate technique for optimization of digestion procedure by focussed microwave system for determination of Mn, Zn and Fe in food samples using FAASBezerra, Marcos de Almeida; Ferreira, Sergio Luis Costa; Santelli, Ricardo Erthal; SantAna, Otoniel Domingos de; Cassella, Ricardo JorgensenArtigo de Periódico
2007On-line system for preconcentration and determination of metals in vegetables by Inductively Coupled Plasma Optical Emission SpectrometryBezerra, Marcos de Almeida; Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo; Korn, Maria das Graças Andrade; Ferreira, Sergio Luis CostaArtigo de Periódico