A NEW POLYMER-INORGANIC MATERIAL BASED ON SILICA GEL WITH ADSORBED COPOLYMER OF 8-METHACRYLOXYQUINOLINE-5-SULFONIC ACID AND METHYL METHACRYLATE: SYNTHESIS AND SORPTION PROPERTIES OF Cu(II), Cd(II) AND Pb(II) IONS: DOI: Https: doi.Org 10.17721 1728-2209.2025.1(60).1. Вісник: Хімія 2025, 60 (1), 5-13.