“…All activated carbons are commercially available in the market for application in the medical, pharmaceutical, and biotechnological field: Norit B test Eur (Germany), Panreac (Spain), BDH (England), Merck (Germany), purified ML (Cuba) and not purified M (Cuba). The activated carbon M was supplied by the Plant Production Baracoa Activated Carbon and treated subsequently by acid/base process (ML) [22][23][24]. The particle size of all samples is 100% under 250 µm.…”