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Simultaneous separation of inorganic anions and cations using capillary electrophoresis with a movable contactless conductivity detector
journal contribution
posted on 2023-05-16, 13:50 authored by Unterholzner, V, Miroslav MackaMiroslav Macka, Paul HaddadPaul Haddad, Zemann, AJA number of small inorganic anions and cations were separated after injection of the sample into both ends of a separation capillary. The ions were detected using a capacitively coupled contactless conductivity detector (CCCCD) which could be placed at various positions along the capillary length. Counter-directional migration of anions and cations occurs towards the detector, which is placed at an appropriate position along the capillary so that the migration order is determined by the respective effective separation capillary lengths for both anions and cations. As the CCCCD detector can be easily moved to any position along the capillary, virtually any effective separation length can be attained. Depending on the number of analytes in the sample, one can choose to obtain either electropherograms with inter-migrating zones of cations and anions or separations with distinct regions of anion and cation zones, respectively. A new term apparent separation selectivity is introduced to describe the manner in which the position of the detector can be varied in order to determine the final separation.
History
Publication title
AnalystVolume
127Issue
6Pagination
715-718ISSN
0003-2654Department/School
School of Natural SciencesPublisher
The Royal Society of ChemistryPlace of publication
Cambridge, EnglandRights statement
Copyright � 2002 Royal Society of ChemistryRepository Status
- Restricted