Method for Vanadium Speciation in Aqueous Samples by HPLC-ICP-OES

  • M Hu
  • PP Coetzee
Keywords: Anion exchange, vanadium speciation, EDTA, HPLC, ICP-OES.

Abstract

A method for vanadium speciation is proposed. The method uses a low concentration eluent, 10 mmol L–1 EDTA and 14 mmol L–1 sodium carbonate, for the ion chromatographic separation of vanadium species at a flow rate of 1.2 mL min–1. The quantitative detection limits were 0.14mgL–1 for V(IV) and 0.20mgL–1 for V(V) using ICP-OESdetection. The method was successfully applied to the analysis of synthetic samples and  mineral processing samples.


KEYWORDS: Anion exchange, vanadium speciation, EDTA, HPLC, ICP-OES.

Published
2015-10-07
Section
Articles

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eISSN: 0379-4350