NAGAHIRO, Tohru; UESUGI, Katsuya; SATAKE, Masatada. Column Preconcentration of Cobalt Using 4-(5-Bromo-2-pyridylazo)-1,3-diaminobenzene and Ammonium Tetraphenyl-broate Supported on Naphthalene and Its Analysis Using Atomic Absorption Spectrometry . Asian Journal of Chemistry, [S. l.], v. 5, n. 3, p. 743–748, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/24904. Acesso em: 5 nov. 2024.