Praesto Pure90 is a plain agarose-based chromatography media designed for large scale biomolecule purification. Praesto Pure90 is the ideal base matrix for production of affinity chromatography resins with minimal unspecific interaction and long functional life time. The relatively large particle size (90 µm), makes Praesto Pure90 the first choice for capture when large sample volumes need to be processed within a limited time frame. Praesto Pure90 can also be directly used for purification by gel filtration of different large biomolecules such as viruses and plasmids.


Principal Applications

  • Protein purification
  • Virus Application


  • Ideal base matrices for development of affinity resins
  • Excellent recoveries of active proteins
  • Excellent pressure/flow performance
  • Excellent chemical and physical stability
  • Low non-specific interactions
  • Secure, validated supply and regulatory support

Regulatory Approvals

  • Manufactured under cGMP conditions

Typical Physical & Chemical Characteristics:

Polymer Structure Highly cross linked agarose
Appearance Spherical beads
Functional Group Not functionalized
Chemical stability All commonly used aqueous buffers, 2M NaOH, 8M urea, 6M guanidine HCl, 30% isopropanol, 70% ethanol, 30% acetonitrile and commonly used detergents
Particle Size - µm 90 µm
Pressure/flow (min.) - at 3 bar in a 2.6 x 20 cm column (pressure-packed at 4 bar) 800 cm/h
Exclusion limit for globular proteins 10 7 Daltons
pH stability, CIP (short term) 2 - 14
pH stability, working range 3 - 13
Recommended Storage 4 - 30 °C
Recommended Storage 20% ethanol