Flexible bioprocessing container with partial dividing partition

A method of separating magnetic particles from a fluid, the method comprising:

• introducing a fluid mixture into an internal compartment of a flexible container through an inlet of the container, the container having a perimeter that encircles the internal compartment, the perimeter including a front side and an opposing back side with the internal compartment disposed therebetween, the inlet being disposed on the front side, the fluid mixture comprising a liquid media, a biological component, and magnetic particles, the container being disposed on a magnetic field generating device which is supported by a base support;
• allowing at least a portion of the fluid mixture to travel around a partition formed within the internal compartment and then exit the internal compartment through an outlet disposed on the front side of the container, the partition projecting into the internal compartment from the front side between the inlet and the outlet;
• tilting the magnetic field generating device relative to the base support so that the magnetic field generating device and container are tilted at an angle relative to the base support;
• and
• applying a magnetic field to the fluid mixture in the internal compartment so that the magnetic particles become retained within the container by the magnetic field as the media and the biological component flow from the inlet, around the partition and to the outlet.