JANNAH, Firaihanil; IDROES, Rinaldi; NAZARUDDIN, Nazaruddin; IDRIS, Nasrullah; SAFITRI, Eka; MD SANI, Nor Diyana. Assessment of Al3+ Ion Selectivity Coefficient (Kij) in Polyurethane Membranes Derived from Castor Oil (Ricinus communis. L) via Separated Solution Method. Grimsa Journal of Science Engineering and Technology, [S. l.], v. 1, n. 2, p. 78–85, 2023. DOI: 10.61975/gjset.v1i2.18. Disponível em: http://journals.grimsa.org/index.php/gjset/article/view/18. Acesso em: 24 jun. 2026.