S. JHA, Chandra. Potentiometric Studies on Chelation of Cu(II), Ni(II), Co(II) and Fe(II) with o-Vanillinsemicarbazone . Asian Journal of Chemistry, [S. l.], v. 8, n. 1, p. 38–41, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/24015. Acesso em: 26 aug. 2024.