Method of and device for moving liquid samples

摘要

The invention is in concern of a method and a device for moving a liquid sample material in a measuring chamber, particularly for use in electrophoretic measurements. To permit precise measurements the remaining sample material is prevented from mixing with the sample material under test. The valves employed have to be closed in the course of the sample movement. This is realized in displacing the sample material by means of two pistons rigidly connected to each other and arranged in a by-pass of the measuring chamber.