We offer high performance affinity particles to meet your needs for antibody purification and immunoprecipitation (IP) assays in two versatile formats, affinity resin and magnetic beads. Our protein A plus agarose affinity resin for antibody purification is available in formats ranging from agarose beads, pre-packed spin columns, 96-well filter plates, and complete IgG purification kits. Our protein A magnetic beads can be used as affinity particles for antibody purification and IP methods using manual or robotic magnetic separators.

Which particle and format is right for you?

  Protein A Plus Agarose Protein A Magnetic Beads
Particle size 45–165 microns 1 micron
Maximum Linear Velocity 30 cm/hour N/A
Composition 6% cross-linked agarose Surface blocked magnetic bead
Binding capacity 34 mg human IgG/mL resin >400 µg rabbit IgG/mL beads
Available as beads

Prepacked Cartridges

Spin Columns

96 well spin plate

Complete Purification Kit



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Guide to antibody purification