Device for reducing loss of liquid during fraction collection

摘要

A fraction collector comprising a liquid holding means (31) wherein it further comprises a fluid front control arrangement (43) arranged for locating the fluid front at a dispensing nozzle (5) and to control the liquid holding means (31) to keep the fluid front at a predetermined position.

主权项

1. A method for avoiding loss of liquid during fraction collection of a liquid flow when switching from one collecting receptacle to the next in a fraction collector, comprising the steps:
actuating an expandable chamber to accumulate the liquid flow during the time interval for switching from one collecting receptacle to the next receptacle, locating the fluid front at a dispensing nozzle, controlling the actuation of the expandable chamber to keep the fluid front at a predetermined position, actuating the expandable chamber to dispense the accumulated liquid into the second receptacle.