ADSORPTION BEHAVIOUR OF CITRIC ACID FROM AQUEOUS SOLUTIONS ON ACTI­ VATED CHARCOAL. Biological Sciences - PJSIR, [S. l.], v. 45, n. 2, p. 82–85, 2002. Disponível em: https://biostaging.pjsir.org/index.php/biological-sciences/article/view/1755. Acesso em: 22 mar. 2026.