LI, Victoria; PARK, Daniel; MONDOL, Imteaz. Application of Polyethylenimine Modified Nickel Ferrite Graphene Oxide Composite in the Enrichment of Phosphopeptides. Journal of Green Energy and Environmental Engineering, [S. l.], v. 4, n. 1, p. 256–269, 2026. DOI: 10.64972/jgeee.v4i1.449. Disponível em: http://www.wpias.edu.pl/ojs/index.php/JGEEE/article/view/449. Acesso em: 22 sep. 2026.