6533b7d9fe1ef96bd126bfda
RESEARCH PRODUCT
Study on the sensitive and selective adsorption voltammetry of vanadium with antipyrylazo III (APA III)
Jinkui ZhouRolf Neebsubject
Antipyrylazo IIIDetection limitAdsorptionchemistryLigandSelective adsorptionInorganic chemistryVanadiumchemistry.chemical_elementBiochemistryVoltammetryAnalytical ChemistryIondescription
The sensitive and selective adsorption voltammetric determination of the vanadium(V)-antipyrylazoIII complex in HAc-NaAc solution is investigated. The V-complex is strongly adsorbed onto a stationary Hg-electrode and is reduced at a potential more negative than that corresponding to the reduction of its ligand. The conditions for determining vanadium are investigated and the mechanism of the reduction peak of the vanadium complex is discussed, as also the influence of foreign ions on the determination of vanadium. An at least 20-fold excess of foreign ions does not cause any interference. The detection limit is 4×10−10 mol/l V with 3 min enrichment time.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-01-01 | Fresenius' Journal of Analytical Chemistry |