Microcon® Centrifugal Filter Units
The lab standard for sub-microlitre volumes

• Provide high recoveries (typically >95%) of even dilute (ng/mL to µg/mL) protein solutions
• Use low-binding Ultracel®-YM membrane

Amicon® Ultra-4 Centrifugal Filter Units
Performance standard for concentrating
1mL to 4mL

• Process 2 to 4mL in as few as 10 minutes
• Double membrane panels increase surface area and reduce filtration times
• Deadstop prevents sample from spinning to dryness and eliminates the need for an inverse spin

Amicon® Ultra-15 Centrifugal Filter Units
The premier devices for concentrating <15mL

• Provide both ultra-fast spin times and
  ultra-high recoveries (typically >90%)
• The vertical membrane reduces concentration polarisation for spin times as fast as 10 to 15 minutes
• The heat-sealed membrane minimises downstream extractables