Preconcentration of Ion Ni(II) using Ca-Alginate Modified Resin with Dimethylglyoxime as a Filler Material of Column. Jurnal Kimia Valensi, [S. l.], v. 6, n. 1, p. 40–46, 2020. DOI: 10.15408/jkv.v6i1.7700. Disponível em: https://journal.uinjkt.ac.id/valensi/article/view/7700. Acesso em: 3 dec. 2025.