Use of miniaturised isotachophoresis on a planar polymer chip to analyse transition metal ions in solutions from metal processing plants

Prest, J. E. and Baldock, S. J. and Fielden, P. R. and Goddard, N. J. and Kalimeri, K. and Brown, B. J. T. and Zgraggen, M. (2004) Use of miniaturised isotachophoresis on a planar polymer chip to analyse transition metal ions in solutions from metal processing plants. Journal of Chromatography A, 1047 (2). pp. 289-298. ISSN 0021-9673

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Abstract

An electrolyte system, using malic acid as a complexing agent, has been developed to allow the determination of transition metal cations using miniaturised isotachophoresis. The method allowed the simultaneous determination of Mn2+, Cr3+, Fe2+, Co2+, Zn2+ and Ni2+ to be made without interference from other common ions. Limits of detection were calculated to be in the range 0.5–1.0 mg l−1 for Mn2+, Cr3+ Co2+and Zn2+ and 2.0 mg l−1 for Fe2+ and 4.7 mg l−1 for Ni2+. The successful analysis of five industrial samples, containing a range of these metal ions, obtained from metal processing plants were achieved in under 13 min. The separations were performed on a poly(methyl methacrylate) chip with integrated platinum wire conductivity detection electrodes.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Chromatography A
Subjects:
ID Code:
77511
Deposited By:
Deposited On:
06 Jan 2016 11:34
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 09:32