“SYNTHESIS AND SORPTION PROPERTIES TOWARDS TOXIC METAL IONSOF COMPOSITES BASED ON SILICA GEL AND ADSORPED 4-VINYLPYRIDINE AND TERT-BUTYL METHACRYLATE COPOLYMERS: DOI: Https: doi.Org 10.17721 1728-2209.2023.1(58).3”. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, vol. 58, no. 1, Dec. 2023, pp. 18-21, https://chemistry.bulletin.knu.ua/article/view/1592.