On-line sample preconcentration in capillary electrophoresis

On-line Sample Preconcentration by Large-volume Sample Stacking with an Electroosmotic Flow Pump (LVSEP) in Microscale Electrophoresis

“…[3][4][5][6][7][8][9][10][11] These techniques are based on changes in the analyte migration velocity at the boundary in two or three discontinuous solutions systems. To stack target analytes, a sample solution whose components differ from those of a background solution (BGS) is injected into the capillary as a long plug.…”

Column Coupling Electrophoresis in Biomedical Analysis

“…As it is known from the literature (Simpson et al, 2008;Bonato, 2003) CE has many advantages (high separation efficiency, versatility, flexibility, use of aqueous separation systems, low consumptions of electrolytes as well as minute amounts of samples). Beyond all the advantages, conventional CE has also some drawbacks, which limit its application in routine analytical laboratories.…”

Developments in Interfacing Designs for CE–MS: Towards Enabling Tools for Proteomics and Metabolomics

“…In order to overcome this issue, various chromatographic-and electrophoretic-based preconcentration techniques have been developed to enhance the concentration sensitivity of CE-MS. The reader is referred 1 3 to more dedicated literature for an overview concerning these techniques [14][15][16].…”