CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF Cr(lll) AND Fe(III) WITH PYROGALLOL AND HETEROCYCLIC AMINES. Biological Sciences - PJSIR, [S. l.], v. 37, n. 9, p. 352–355, 2022. Disponível em: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2711. Acesso em: 10 mar. 2026.