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| Issue Date | Title | Author(s) | | Jan-2004 | Spectrophotometric determination of chromium in steel with 4-(2- thiazolylazo)-resorcinol (TAR) using microwave radiation | Carvalho, Luciene Santos de; Costa, Antonio Celso Spinola; Ferreira, Sergio Luis Costa; Teixeira, Leonardo Sena Gomes |
| 15-Dec-2009 | Statistical mixture design development of digestion methods for Oyster tissue using inductively coupled plasma optical emission spectrometry for the determination of metallic ions | Nano, Rita M. W.; Bruns, Roy Edward; Ferreira, Sergio Luis Costa; Baccan, Nivaldo; Cadore, Solange |
| 2009 | Multivariate optimization and validation of an analytical method for the determination of cadmium in wines employing ET AAS | Ferreira, Sergio Luis Costa; Jesus, Robson M. de; Matos, Geraldo D.; Andrade, Jailson Bittencourt de; Bruns, Roy Edward; Santos, Walter Nei Lopes dos; Cavalcante, Dannuza Dias; Vale, Maria G. R.; Dessuy, Morgana B. |
| 15-Feb-2005 | Optimisation of focused-microwave assisted digestion procedure for Kjeldahl nitrogen determination in bean samples by factorial design and Doehlert design | Korn, Maria das Graças Andrade; Santos, Wagna P. C. dos; Korn, Mauro; Ferreira, Sergio Luis Costa |
| 28-Feb-2005 | Determination of cadmium and lead in table salt by sequential multi-element flame atomic absorption spectrometry | Amorim, Fábio Alan Carqueija; Ferreira, Sergio Luis Costa |
| 28-Feb-2005 | Factorial design in the optimization of preconcentration procedure for lead determination by FAAS | Soylak, Mustafa; Narin, Ibrahim; Bezerra, Marcos de Almeida; Ferreira, Sergio Luis Costa |
| 2009 | A photo-oxidation procedure using UV radiation/H2O2 for decomposition of wine samples: determination of iron and manganese content by flame atomic absorption spectrometry | Santos, Walter Nei Lopes dos; Brandão, Geovani Cardoso; Portugal, Lindomar A.; David, Jorge Mauricio; Ferreira, Sergio Luis Costa |
| Sep-2002 | An on-line system for preconcentration and determination of lead in wine samples by FAAS | Lemos, Valfredo Azevedo; Guardia, Miguel de la; Ferreira, Sergio Luis Costa |
| 15-Dec-2009 | Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design | Macedo, Samuel Marques; Jesus, Raildo M. de; Garcia, Karina S.; Hatje, Vanessa; Queiroz, Antônio Fernando de Souza; Ferreira, Sergio Luis Costa |
| 2009 | Application of multivariate optimization in the development of an ultrasound-assisted extraction procedure for multielemental determination in bean seeds samples using ICP OES | Santos, Wagna Piler Carvalho; Castro, Jacira Teixeira; Bezerra, Marcos de Almeida; Fernandes, Andréa Pires; Ferreira, Sergio Luis Costa; Korn, Maria das Graças Andrade |
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