Figure 3From: Coordinative interaction of microcrystalline chitosan with oxovanadium (IV) ions in aqueous solutionTitration curves (presented by square points) and species distribution of the complexes formed in H+- VO(IV) - MCCh (DD = 0.977) system. CMCCh (mol-L-1) = 7.0 × 10-3. Ligand to metal ratio a) 2:1, b) 5:1, c) 8:1, d) 10:1. Dotted points correspond to the pH range of visible precipitation.Back to article page