PREPARATION OF PEARL CALCIUM ALGINATE WITH MAGNETIC PROPERTIES AND THEIR APPLICATION IN THE ADSORPTION OF Cu (ll). Rev. peru. quím. ing. quim. [Internet]. 2009 Dec. 31 [cited 2024 Jul. 17];12(2):29-33. Available from: https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4317