Isotachoforesa

This article is devoted to a new modern analytical technique isotachophoresis which is an electrophoretic technique with free moving zone boundaries. During an isotachophoretic analysis the ionic components of the sample are separated in consequence of different effective or net mobilities. The result of the separation is an equilibrium state in which all ions move with the same speed, individually separated into a number of conseeutive zones of pure components in immediate contact with each other, and arranged in the order of their mobilities. In the article the instrumentation for the performanee of this technique in capillaries is described, as well as the detection by means of thermocouples. Using this instrumentation analyses of ionic components may be carried out very rapidly both in aqueous and in non-aqueous medium.