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Data do documentoTítuloAutor(es)Tipo
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
3-Jun-2005Determination of Pb in river water samples by inductively coupled plasma optical emission spectrometry after ultrasound-assisted co-precipitation with manganese dioxideBispo, Márcia Sousa; Boa Morte, Elane Santos da; Korn, Maria das Graças Andrade; Teixeira, Leonardo Sena Gomes; Korn, Mauro; Costa, Antonio Celso SpinolaArtigo 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
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
1998Preconcentration and Determination of Copper and Zinc in Natural Water Samples by ICP-AES After Complexation and Sorption on Amberlite XAD-2Ferreira, Sergio Luis Costa; Santos, Hilda Costa dos; Ferreira, Janeide Reis; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola; Jesus, Djane Santiago 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
1997Determination of Iron in Alkaline Salts by ICP-AES Using 1-(2-Thiazolylazo)-p-Cresol (TAC) for Preconcentration and SeparationFerreira, Sergio Luis Costa; Queiroz, Adriana Santana; Assis, Júlio César Rosa; Korn, Maria das Graças Andrade; Costa, Antonio Celso SpinolaArtigo de Periódico
2005The use of water soluble tertiary amine reagent for solubilization and metal determination in fish muscle tissueMelo, Maria H. A.; Costa, Antonio Celso Spinola; Nóbrega, Joaquim de Araújo; Ferreira, Sergio Luis CostaArtigo de Periódico
1999Spectrophotometric Determination of Zinc Using 7-(4-Nitrophenylazo)-8-Hydroxyquinoline-5-Sulfonic AcidKorn, Maria das Graças Andrade; Ferreira, Adriana Costa; Teixeira, Leonardo Sena Gomes; Costa, Antonio Celso SpinolaArtigo de Periódico
1998Spectrophotometric determination of vanadium(IV) in the presence of vanadium(V) using Br-PADAPCosta, Antonio Celso Spinola; Teixeira, Leonardo Sena Gomes; Jaeger, Helena Valli; Ferreira, Sergio Luis CostaArtigo de Periódico