Isotachophoresis. Experiments with electrolyte counterflow

Regulated counterflow is necessary if differences in mobility between ion species require an excessively long capillary which would result in the voltage being too high for practical reasons. Alternatively if a current stabilized power supply is available, it is possible to carry out expts. in short capillaries only. Equipment suitable for electrophoretic expts. with regulated counterflow of the electrolyte is described. The counterflow technique is used for isotachophoretic anal. in capillaries. [on SciFinder (R)