MICRO CAPILLARIES AND A SEPARATION DEVICE COMPRISING THEM

摘要

The present invention relates to a capillary channel comprising one or more capillary microchannels enhancing the capillary drag force of the capillary channel. The present invention relates to a device for separating a suspension into a liquid phase and a retentate phase. The device comprises a separation chamber comprising an application zone and a hydrophilic filter material. The separation chamber is connected to a first capillary channel, where the connecting junction between the separation chamber and the first capillary channel comprise a capillary micro channels and optional a physical barrier preventing flow of residue retentate from a lower part of the chamber into the first capillary channel. The invention further relates to a method for separating a liquid sample consisting of less than 200 µl suspension, into a retentate phase comprising the suspended matter, and a liquid phase substantially free of suspended matter.