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| Issue Date | Title | Author(s) | | 2005 | Application of multivariate technique in method development for the direct determination of copper in petroleum condensate using graphite furnace atomic absorption spectrometry | Santos, Walter Nei Lopes dos; Dias, Fábio de Souza; Fernandes, M. S.; Rebouças, Márcio das Virgens; Vale, Maria Goreti Rodrigues; Welz, Bernhard; Ferreira, Sergio Luis Costa |
| 2001 | On-line preconcentration system for nickel determination in food samples by flame atomic absorption spectrometry | Ferreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo |
| 2006 | Separation and preconcentration procedures for the determination of lead using spectrometric techniques: A review | Korn, 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 Santos |
| 2003 | Use of factorial design and Doehlert matrix for multivariate optimisation of an on-line preconcentration system for lead determination by flame atomic absorption spectrometry | Ferreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos; Bezerra, Marcos de Almeida; Lemos, Valfredo Azevedo; Bosque-Sendra, Juan Manuel |
| 2011 | Speciation analysis of inorganic antimony in airborne particulate matter employing slurry sampling and HG QT AAS | Ferreira, Sergio Luis Costa; Macedo, Samuel Marques; Santos, Debora C. dos; Jesus, Raildo M. de; Santos, Walter Nei Lopes dos |
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