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Issue Date	Title	Author(s)	Type
16-Sep-2016	Sistema em linha para pré-concentração e determinação de cádmio e chumbo por espectrometria de absorção atômica com chama utilizando minicoluna de espuma de poliuretano impregnada com 2-(2´-benzotiazolilazo)-p-cresol	Lemos, Valfredo Azevedo	Tese
2011	Multi-element determination of Cu, Fe, Ni and Zn content in vegetable oils samples by high-resolution continuum source atomic absorption spectrometry and microemulsion sample preparation	Fernandes, Andréa Pires; Nunes, Luana Sena; Barbosa, José Tiago Pereira; Lemos, Valfredo Azevedo; Santos, Walter Nei Lopes dos; Korn, Maria das Graças Andrade; Teixeira, Leonardo Sena Gomes	Artigo de Periódico
2003	On-line preconcentration system using a minicolumn of polyurethane foam loaded with Me-BTABr for zinc determination by Flame Atomic Absorption Spectrometry	Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo; Santos, Juracir Silva	Artigo de Periódico
2007	Automatic on-line pre-concentration system using a knotted reactor for the FAAS determination of lead in drinking water	Souza, Anderson Santos; Brandão, Geovani Cardoso; Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo; Ganzarolli, Edgard Moreira; Bruns, Roy Edward; Ferreira, Sergio Luis Costa	Artigo de Periódico
2011	On-line simultaneous pre-concentration procedure for the determination of cadmium and lead in drinking water employing sequential multi-element flame atomic absorption spectrometry	Santos, João Victor da Silva; Silva, O. B.; Araújo, André S.; Lemos, Valfredo Azevedo; Miró, Manuel; Ferreira, Sergio Luis Costa; Santos, Walter Nei Lopes dos	Artigo de Periódico
2007	On-line system for preconcentration and determination of metals in vegetables by Inductively Coupled Plasma Optical Emission Spectrometry	Bezerra, Marcos de Almeida; Santos, Walter Nei Lopes dos; Lemos, Valfredo Azevedo; Korn, Maria das Graças Andrade; Ferreira, Sergio Luis Costa	Artigo de Periódico