Amicon Ultra 2ml 100K 24PK Concentrates 2 mL down to 15-70 µl 98% sample recovery Fast processing time - 10 to 30 minute spin times Engineered dead stop Reverse spin capability provides consistent recoveries Applications: Concentration of biological samples containing antigens, antibodies, enzymes, nucleic acids, or microorganisms Purification of macromolecular components found in tissue culture extracts or cell lysates Primer removal, PCR cleanup, removal of linkers or macromolecular labels from a reaction mix, and protein removal prior to HPLC Desalting, buffer exchange and protein dialysis Material Supplied: The Amicon® Ultra-2 device is supplied with two microcentrifuge tubes. During operation, one tube is used to collect filtrate; the other tube is to recover the concentrated sample.