Affordable Access

Publisher Website

Determination of antimony (III) and (V) by differential pulse anodic stripping voltammetry

Authors
Journal
Talanta
0039-9140
Publisher
Elsevier
Publication Date
Volume
42
Issue
2
Identifiers
DOI: 10.1016/0039-9140(94)e0122-8
Disciplines
  • Chemistry

Abstract

Abstract Re-evaluation of DPASV procedures for determining low levels of Sb (III) and Sb (V) in solution identified several problem areas, e.g. anomalous ASV behaviour, possible formation of an intermediate valency state during the analytical cycle, and chemical interactions in acidified test solutions containing both valency states. Specific determination of Sb (III) can be achieved using base solutions composed of 0.2 M HCl (detection limit 10 n M) or acetic acid/acetate buffer (detection limit 600 n M). For the determination of Sb (V), analysis in 2 M HCl is recommended [with response in 0.2 M HCl being used to correct for any Sb (III) present].

There are no comments yet on this publication. Be the first to share your thoughts.