Determination of the ascorbate content of photographic developer solutions using miniaturised isotachophoresis on a planar chip

Prest, Jeff E. and Baldock, Sara J. and Fielden, Peter R. and Goddard, Nicholas J. and Brown, Bernard J. Treves (2003) Determination of the ascorbate content of photographic developer solutions using miniaturised isotachophoresis on a planar chip. Analyst, 128 (9). pp. 1131-1136. ISSN 0003-2654

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Abstract

The use of miniaturised isotachophoresis, performed on a planar poly(methyl methacrylate) device with integrated platinum conductivity electrodes, for the analysis of the ascorbate content of photographic developer solutions has been investigated. An electrolyte system has been developed which enabled the analysis to be made without interference from any of the other components in the developer solution, a number of which were present at significantly higher concentrations than that of the ascorbate ions. Using this system, the ascorbate content of the developer solutions could be analysed in under 6 min. The limit of detection for ascorbate using miniaturised isotachophoresis was calculated to be 0.011 mmol dm−3.

Item Type: Journal Article
Journal or Publication Title: Analyst
ID Code: 77515
Deposited By: ep_importer_pure
Deposited On: 05 Jan 2016 09:14
Refereed?: Yes
Published?: Published
Last Modified: 11 Jun 2019 02:55
URI: https://eprints.lancs.ac.uk/id/eprint/77515

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