Millipore Amicon Ultra-2, User Manual, Page: 8 / 11

Amicon
®
Ultra-2 Centrifugal Filter Devices
8
Specifications
Maximum initial sample volume 2.0 mL
Typical final concentrate volume 30–70 µL depending on MWCO
Maximum relative centrifugal force
Swinging bucket rotor 4,000 × g for concentration spin,
1,000 × g for recovery spin
Fixed angle rotor 7,500 × g for concentration spin,
1,000 × g for recovery spin
NOTE: When spinning viscous solutions such as
undiluted serum or plasma, do not exceed 5,400 x g.
Active membrane area 1 cm
2
Hold-up volume < 5 μL
Dimensions
Filter device and tube
Length (concentration mode; device in filtrate tube): 119.7 mm (4.71 in.)
Length (recovery spin; device upside down in concentrate tube): 95.3 mm (3.75 in.)
Filter device Diameter: 15.9 mm (0.63 in.) Length: 70.7 mm (2.78 in.)
Filtrate tube Diameter: 13.8 mm (0.54 in.) Length: 52.9 mm (2.08 in.)
Concentrate tube Diameter: 13.7 mm (0.54 in.) Length: 34.5 mm (1.36 in.)
Materials of Construction
Filter device Copolymer styrene/butadiene
Membrane Ultracel
®
low-binding regenerated cellulose
Collection tubes Polypropylene