Switch device i.e. switching valve, for coupling fluid containing volume at fluidic path for separating fractions of fluidic sample, has valve element with fluid channels, where switch device switches volume in fluid path

摘要

The device (80) has a valve element with multiple ports as fluid ports for fluidic connection to a fluid drive (20), a separating device (30) and a fluid containing volume. Another valve element is provided with multiple fluid channels, where the switch device is designed to switch the fluid containing volume in a fluid path between the fluid drive and the separating device in a control mode such that pressures meet a predetermined switching criterion when a result of increase in pressure on the fluid containing volume and pressure decrease in the separation device. Independent claims are also included for the following: (1) a sample separating device for separating fractions of a fluidic sample (2) a method for coupling a fluid containing volume provided based on low pressure at a fluidic path provided based on high pressure between a fluid drive and a sample separating device for separating fractions of a fluidic sample.