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Data do documentoTítuloAutor(es)Tipo
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
2009Application of multivariate optimization in the development of an ultrasound-assisted extraction procedure for multielemental determination in bean seeds samples using ICP OESSantos, Wagna Piler Carvalho; Castro, Jacira Teixeira; Bezerra, Marcos de Almeida; Fernandes, Andréa Pires; Ferreira, Sergio Luis Costa; Korn, Maria das Graças AndradeArtigo de Periódico
2004Multivariate optimization and validation studies in on-line pre-concentration system for lead determination in drinking water and saline waste from oil refinerySantos, Walter L. dos; Santos, Carla M. M. dos; Costa, Jorge L. O.; Andrade, Heloysa Martins Carvalho; Ferreira, Sergio Luis CostaArtigo de Periódico
2005Application of Box–Behnken design in the optimisation of an on-line pre-concentration system using knotted reactor for cadmium determination by flame atomic absorption spectrometrySouza, Anderson Santos; Santos, Walter Nei Lopes dos; Ferreira, Sergio Luis CostaArtigo de Periódico
2006Separation and preconcentration procedures for the determination of lead using spectrometric techniques: A reviewKorn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa; Andrade, Jailson Bittencourt de; Jesus, Djane S. de; Lemos, Valfredo Azevedo; Bandeira, Marcus Luciano Souza de Ferreira; Santos, Walter Nei Lopes dos; Bezerra, Marcos de Almeida; Amorim, Fábio Alan Carqueija; Souza, Anderson SantosArtigo de Periódico
2003Application of Doehlert designs for optimisation of an on-line preconcentration system for copper determination by flame atomic absorption spectrometryFerreira, Sergio Luis Costa; Bezerra, Marcos de Almeida; Santos, Walter Nei Lopes dos; Barros Neto, Benício deArtigo de Periódico
2007Determination of zinc and copper in human hair by slurry sampling employing sequential multi-element flame atomic absorption spectrometryFerreira, Hadla S.; Santos, Walter Nei Lopes dos; Fiuza, Raigenis da Paz; Nóbrega, Joaquim de Araújo; Ferreira, Sergio Luis CostaArtigo de Periódico
2000A separation method to overcome the interference of aluminium on zinc determination by inductively coupled plasma atomic emission spectroscopyJesus, Djane S. de; Korn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa; Carvalho, Marcelo Souza deArtigo de Periódico
28-Fev-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
2003Application of three-variables Doehlert matrix for optimisation of an on-line pre-concentration system for zinc determination in natural water samples by flame atomic absorption spectrometrySantos, Walter Nei Lopes dos; Santos, Carla M. C.; Ferreira, Sergio Luis CostaArtigo de Periódico

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