Figure 1.

In vitro phosphate binding. (A) VS-501 at 0.1 g was incubated with 10 mL of a phosphate solution containing different phosphate concentrations (as indicated) and sodium carbonate and NaCl as described in Methods at neutral pH for 24 h at room temperature. The graph is representative of two independent experiments. (B) VS-501 at 0.1 g was incubated with 10 mL of a 20 mmol/L phosphate solution as described in Methods at different pH (as indicated) for 24 h at room temperature. The samples were processed for phosphate determination as described in Methods. The graph is representative of three independent experiments.