EXTRACTION OF TRACE METALS FROM SOLUTIONS USING SORBENT SEQUENTIALLY MODIFIED BY POLYHEXAMETHYLENE GUANIDINE AND TRILON B. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, [S. l.], v. 51, n. 1, p. 19–23, 2015. Disponível em: https://chemistry.bulletin.knu.ua/article/view/8516. Acesso em: 14 feb. 2026.