Abstract:
A mixer for small volumes (2) comprising a mixing chamber (4); and a motor (6) mechanically connected to the mixing chamber (4); wherein the mixing chamber (4) comprises a suspended elongate rigid tube section (8) having a top end (10) and an open bottom end (12), and a flexible tube section (16) extending downwards from the open bottom end (12); and wherein the motor (6) comprises a vibration motor mechanically coupled to the rigid tube section (8) towards the top end (10).
Abstract:
A filtration device (2) comprises a sample chamber (10) housed in a body (4), which body (4) has an open top (6) in communication with the sample chamber (10); a well (24) for liquid filtrate; and a cap (12) for closing the open top (6). The cap (12) has a liquid passageway (22) covered at one end by a filter medium (20) and providing a liquid communication for liquid filtrate from the sample chamber (10). The cap (12) is configured to carry the well (24) at a position closer to an outer periphery (11 ) of the cap (12) than the liquid passageway (22) in a plane parallel to the open top (6) when closed by the cap (12).