Adsorption of Sulfated Polysaccharides on Mercury and γ-Al_2O_3 Particles in Sodium Chloride Solution and Seawater

摘要

Adsorption of Dextran sulfate and natural sulfated polysaccharides from algal sources, l-, k- and λ-carrageenans on the mercury sur- face and on the λ-Al_2O_3 particles were studied by out of phase a. c. voltammetry. On the mercury surface, the adsorption of Dextran sulfate and adsorption of carrageenans are of similar extent. Comparative studies of the adsorption of polysaccharides on alu- Minium particles showed a considerable adsorption of l-carra- Geenan and Dextran-sulfate onto γ-Al_2O_3 particles (Γ=300 mg/g And 100 mg/g, respectively).