Determination of Selenium(IV) by Cathodic Stripping Voltammetry Using a Copper Microelectrode

Determination of Selenium(IV) by Cathodic Stripping Voltammetry Using a Copper Microelectrode

Using a copper microelectrode of ∼5-μm diameter, the concentration of Se(IV) was determined by cathodic stripping voltammetry either from HClO4(0.1M) or from NaClO4(0.1M) supporting electrolytes. The preconcentration time of 15 s was chosen as optimal, and calibration graphs were constructed for the...

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Veröffentlicht in:Microchemical journal 1997-10, Vol.57 (2), p.255-260
Hauptverfasser: SUz̆, D., Blagojević, S., Vidić, J., Erceg, M., Vu c̆ć, D.
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Chemistry
Electrochemical methods
Exact sciences and technology
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Zusammenfassung:Using a copper microelectrode of ∼5-μm diameter, the concentration of Se(IV) was determined by cathodic stripping voltammetry either from HClO4(0.1M) or from NaClO4(0.1M) supporting electrolytes. The preconcentration time of 15 s was chosen as optimal, and calibration graphs were constructed for the applied concentration interval 5 to 50 μM.Satisfactory reproducibility was obtained, with a standard deviation for 5 μMconcentration (n= 10) of about 4%.
ISSN:0026-265X
1095-9149
DOI:10.1006/mchj.1997.1490