Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Use of miniaturised isotachophoresis on a planar polymer chip to analyse transition metal ions in solutions from metal processing plants
AU - Prest, J. E.
AU - Baldock, S. J.
AU - Fielden, P. R.
AU - Goddard, N. J.
AU - Kalimeri, K.
AU - Brown, B. J. T.
AU - Zgraggen, M.
PY - 2004/8/27
Y1 - 2004/8/27
N2 - 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.
AB - 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.
KW - Isotachophoresis
KW - Chip technology
KW - Miniaturisation
KW - Instrumentation
KW - Metal cations
U2 - 10.1016/j.chroma.2004.07.008
DO - 10.1016/j.chroma.2004.07.008
M3 - Journal article
VL - 1047
SP - 289
EP - 298
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
IS - 2
ER -