A potentiometric detection technique for chelating agents after separation by capillary zone electrophoresis
journal contribution
posted on 2023-05-26, 16:24authored byBuchberger, W, Aichhorn, D, Niessner, G, Paul HaddadPaul Haddad, Bogan, DP
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 100˜í¬¿m 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.
History
Publication title
Monatshefte fur Chemie
Volume
129
Article number
8-9'
Number
8-9'
Pagination
811-816
ISSN
0026-9247
Publication status
Published
Rights statement
The original publication is available at www.springerlink.com