Rapid chloride analysis using miniaturised isotachophoresis

Prest, J. E. and Baldock, S. J. and Fielden, P. R. and Goddard, N. J. and Mohr, S. and Brown, B. J. T. (2006) Rapid chloride analysis using miniaturised isotachophoresis. Journal of Chromatography A, 1119 (1-2). pp. 183-187. ISSN 0021-9673

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Abstract

A new design of miniaturised separation device for performing isotachophoresis (ITP) has been produced. The device contains a simple arrangement of channels comprising a single separation channel with a ‘double T’ injection geometry. The device was produced in poly(methyl methacrylate) and incorporates an on-column conductivity detector. A new electrolyte system was developed to enable the rapid determination of chloride to be made. This electrolyte system uses a leading ion of 3.5 mM nitrate at pH 3.0 with 0.5 mM indium(III) added as a complexing agent. Use of this electrolyte system with the new separation device allowed chloride samples to be analysed in under 100 s, with a limit of detection (LOD) calculated to be 2.2 mg l−1.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Chromatography A
Subjects:
?? ISOTACHOPHORESISMINIATURISATIONMICRODEVICECHIPCHLORIDE ANALYSISCONDUCTIVITY DETECTION ??
ID Code:
77503
Deposited By:
Deposited On:
06 Jan 2016 10:54
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Sep 2023 00:57