Ready-to-use membrane adsorbers for immobilized metal affinity chromatography (IMAC) in syringe filter format. Superior flow rates and high binding capacity based on the patented macroporous Sartobind® membranes with iminodiacetic acid (IDA). Sartobind®?Lab units are available with a 2.1 mL bed volume providing binding capacities up to 7.5 mg his-tagged protein per unit. Sartobind® Lab units enable simple equipment-free handling by syringe or can be easily connected to FPLC systems for automated purifications.