| Abstract: | Titanium(IV) dissolved in water solution can be successfully determined using adsorptive cathodic stripping square‐wave voltammetry in the presence of the mixed ligand system acetylacetone – lumazin (2,4‐dihydoxypteridin) maintaining pH at about 6. The method is additionally very sensitive due to the possibility of variation of square‐wave voltammetric parameters such as frequency and/or amplitude. The reduction peak of the titanium mixed ligand complex was detected at the potential of ?1.49 V (vs. Ag/AgCl) and a limit of detection was found to be 0.4 nM with the accumulation time of 20 minutes at the potential of ?1.2 V in the UV‐irradiated artificial seawater. Interferences of other trace metal ions and surface‐active substances were investigated as well. |
