IMMOBILIZATION OF ORGANIC REAGENTS USED IN THE DETERMINATION OF GALLIUM AND ALUMINUM IONS BY THE LUMINESCENT METHOD. Scientific journal of the Fergana State University, [S. l.], v. 30, n. 4, p. 95, 2024. Disponível em: https://journal.fdu.uz/index.php/sjfsu/article/view/4147. Acesso em: 9 jan. 2026.