On-Site Mine Water Analysis : Application Note for the PDV6000plus

Document Type

Conference Proceeding

Keywords

mine water analysis, arsenic, voltammetry, in situ, matrix removal, chelating resin

Publisher

CBU Press

Faculty

Faculty of Computing, Health and Science

School

Faculty Office (FCHS) / Centre for Ecosystem Management

RAS ID

10234

Comments

Braungardt, C., Butterfield, M., & Wajrak, M. (2010). On-site mine water analysis:application note for the PDV6000plus. Proceedings of IMWA 2010 International Mine Water Association Symposium . (pp. 331-335). Sydney, Nova Scotia, Canada. CBU Press. Available here

Abstract

This study presents a matrix-removal system for metals that interfere with the determination of arsenic with a voltammetric instrument capable of on-site use. A three-step sample pre-treatment system was developed to remove Fe, Cu and Zn: filtration, adjustment of pH (pH 5.5) and column-extraction of interfering metals using chelating resin. This set-up allowed the direct and accurate determination of As in mine waters containing up to 1500 μg L⁻¹ Cu and 500 μg L⁻¹ Zn and confirmed interferences at higher concentrations. Column optimisation and method adaptation for rapid on-site use are discussed.

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