Kinetic determination of Se(IV) in pharmaceutical samples
A kinetic method is described for the determination of Se(IV) based on its inhibiting effect on the Fe(III) catalysis of the oxidation of C6H5COONa with hydrogen peroxide. The detection limit is 0.06 pg cmT The relative error ranges between 2.1 and 9.5 % for the concentration interval 0.26 to 2.6 ?g...
Gespeichert in:
| Veröffentlicht in: | Journal of the Serbian Chemical Society 2000-01, Vol.65 (8), p.595-601 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | A kinetic method is described for the determination of Se(IV) based on its
inhibiting effect on the Fe(III) catalysis of the oxidation of C6H5COONa
with hydrogen peroxide. The detection limit is 0.06 pg cmT The relative
error ranges between 2.1 and 9.5 % for the concentration interval 0.26 to
2.6 ?g cm-3. Kinetic equations are proposed for the investigated process.
The effects of certain foreign ions upon the reaction rate were determined
in order to assess the selectivity of the method. The method was applied for
the determination of Se(IV) in pharmaceutical samples.
nema |
|---|---|
| ISSN: | 0352-5139 1820-7421 |
| DOI: | 10.2298/JSC0008595M |