| Data do documento | Título | Autor(es) | Tipo |
| 2012 | Factorial 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 spectroscopy | Araújo, Neyla Margarida Lopo de; Ferreira, Sergio Luis Costa; Santos, Hilda Costa dos; Jesus, Djane Santiago de; Bezerra, Marcos de Almeida | Artigo de Periódico |
| 1998 | Preconcentration and Determination of Copper and Zinc in Natural Water Samples by ICP-AES After Complexation and Sorption on Amberlite XAD-2 | Ferreira, Sergio Luis Costa; Santos, Hilda Costa dos; Ferreira, Janeide Reis; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola; Jesus, Djane Santiago de | Artigo de Periódico |
| 1996 | Fast spectrophotometric determination of titanium in rocks with 3,4-dihydroxybenzoic acid | Ferreira, Sergio Luis Costa; Araújo, Neyla Margarida Lopo de; Matos, Renato C.; Torres, André Luís Carvalho; Costa, Antonio Celso Spinola | Artigo de Periódico |
| Mai-1999 | Nickel determination in saline matrices by ICP-AES after sorption on Amberlite XAD-2 loaded with PAN | Ferreira, Sergio Luis Costa; Brito, Cristiane F. de; Dantas, Alailson Falcão; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola | Artigo de Periódico |
| 2000 | Copper determination in natural water samples by using FAAS after preconcentration onto amberlite XAD-2 loaded with calmagite | Ferreira, Sergio Luis Costa; Ferreira, Janeide R.; Dantas, Alailson Falcão; Lemos, Valfredo Azevedo; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola | Artigo de Periódico |
| 1999 | Nickel determination in saline matrices by ICP-AES after sorption on Amberlite XAD-2 loaded with PAN | Ferreira, Sergio Luis Costa; Brito, Cristiane F. de; Dantas, Alailson Falcão; Araújo, Neyla Margarida Lopo de; Costa, Antonio Celso Spinola | Artigo de Periódico |
| 1995 | Spectrophotometric determination of zinc in copper-base alloys with TAN | Ferreira, Sergio Luis Costa; Araújo, Neyla Margarida Lopo de; Santos, Adriana B.; Dantas, Alailson Falcão; Costa, Antonio Celso Spinola | Artigo de Periódico |
