Deakin University
Browse

File(s) under permanent embargo

cu2+, fe2+ and fe3+ analysis of bioleaching solutions using chronoamperometry and bdd electrode

Version 2 2024-06-03, 23:53
Version 1 2017-03-07, 09:30
journal contribution
posted on 2024-06-03, 23:53 authored by M Vepsäläinen, M Chen, Y Yang, R Brokenshire, T Muster
In this work, a boron-doped diamond (BDD) electrodewas evaluated for the electroanalytical determination of millimolar concentrations of Cu2+, Fe2+ and Fe3+ using chronoamperometry. The interfering role that each ion plays on the quantitative determination of other metal ion concentrations was also assessed. No interference from other metal ions was observed when Fe3+ and Fe2+ were analysed. By contrast, reduction of Fe3+ took place at the same potential where [Cu2+] was measured causing a minor interference to the Cu2+ signal. A multiple linear regression (MLR) calibration model was made for each analyte using real bioleaching samples, which demonstrated high coefficients of determination and adequate standard errors. The methods developed were used tomonitorbioleaching of chalcopyrite for 4 months. The electroanalytical methods are particularly well-suited for analysing Cu2+, Fe3+ and Fe2+ concentration in acidic mine drainage (AMD) and bioleaching environments.

History

Journal

Journal of Applied Electrochemistry

Volume

44

Pagination

1135-1143

Location

Amsterdam, The Netherlands

ISSN

0021-891X

eISSN

1572-8838

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

Springer Science+Business Media Dordrecht 2014

Issue

10

Publisher

Elsevier

Usage metrics

    Research Publications

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC