Related Experiment Video
Updated: Aug 14, 2026

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow
Published on: February 4, 2011
Flow splitting at the inlet electrode as a method for decreasing the electric current in electric field assisted
Björn O Eriksson1, Magnus B O Andersson, Lars G Blomberg
1Department of Chemistry, Karlstad University, Sweden.
Abstract:
The combination of pressurized flow and electric field offers, with the use of capillary columns, several options for retention control. However, it has been shown that the utility of this technique is strongly limited by the high electric current that is generated at the high electric field strengths that are needed. We have earlier shown that the high current is a result of locally increased mobile phase ion concentration in the electric field, particularly around the inlet electrode. In this paper, we report that by splitting the mobile phase flow around the inlet electrode a relatively constant ion concentration around the electrode can be obtained and the high currents are there by reduced.
Related Concept Videos
Capillary Electrophoresis: Instrumentation
Electrodeposition
Electrodeposition can...
Capillary Electrophoresis: Applications
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
High-Performance Liquid Chromatography: Elution Process
Ion-Exchange Chromatography
Controlled-Current Coulometry: Overview

