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Trace determination of antimony and bismuth in snow and water samples by stripping voltammetry

✍ Scribed by Andrzej Postupolski; Jerzy Golimowski

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
424 KB
Volume
3
Category
Article
ISSN
1040-0397

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✦ Synopsis

Simultaneous determination of antimony and bismuth was performed from 0.5 M HCI solution that contained 0.1 M hydrazine, using the hanging mercury electrode by differential pulse anodic stripping voltammetry with very slow potential scan rate and small pulse ampli. tude. The influence of HCI and chloride concentrations on the peak shape of Bi and Sb and the influence of other ions and organic substances were investigated. For the determination of antimony and bismuth in water and snow samples, the UV irradiation and the reduction of Sb(V) to Sb(II1) by hydrazine in boiling solution were applied. The detection limit for Bi and Sb is 20 ng L-'.

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