A potentiometric detection technique for chelating agents after separation by capillary zone electrophoresis

Buchberger, W and Aichhorn, D and Niessner, G and Haddad, PR and Bogan, DP (1998) A potentiometric detection technique for chelating agents after separation by capillary zone electrophoresis. Monatshefte fur Chemie, 129 (8-9). pp. 811-816. ISSN 0026-9247

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Official URL: http://dx.doi.org/10.1007/PL00013488

Abstract

The combination of capillary zone electrophoresis with potentiometric detection has been investigated for the determination of chelating agents such as diethylenetriaminepentaacetic acid. The detector consists of a metallic copper electrode with a diameter of 100μm arranged in an end-capillary configuration. The electrode potential depends on the concentration of copper ions at the electrode surface and therefore decreases when chelating agents pass the electrode. In combination with UV detection, both free ligands and metal complexes could be detected.

Item Type:	Article
Additional Information:	The original publication is available at www.springerlink.com
Keywords:	Capillary electrophoresis; Potentiometric detection; Chelating agents; Aminopolycarboxylic acids.
ID Code:	8002
Deposited By:	Mr Marcus Guijt
Deposited On:	13 Nov 2008 10:34
Last Modified:	13 Nov 2008 10:35
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