Lifetech ECR8309M/pH4 is a methacrylate polymer functionalised with amino groups on a short spacer (C2). Resin pH is adjusted at 4 for ionic immobilization of enzymes with iP in the range 4-5 (typical for many glycosidases) by interaction of the ionizable surface aminoacids (Lys, Arg, His, Asp, Glu) with the charged amines on the polymer. Lifetech ECR8309M/pH4 main features are the medium porosity, the hydrophilicity and its optimal use in columns.

Principal Applications

  • Ionic enzyme immobilization (resin pH is adjusted to 4)


  • Medium porosity
  • Used for for ionic immobilization


  • Suitable for batch and column configuration
  • Optimal for all applications in aqueous media

Regulatory Approvals

  • ResAP(2004)3 Status (food grade)
  • Halal
  • Kosher
  • TSE/BSE/GMO free

Typical Packaging

  • 50g
  • 250g
  • 1Kg
  • 2kg
  • 5Kg
  • 25Kg

Typical Physical & Chemical Characteristics:

Appearance White to off white beads
Functional Group Amino (short spacer)
Supplied as Wet
Particle Size Range 300 - 710 µm
Pore Diameter 600 - 1200 Å
Total moisture 62 - 72 %
pH limit stability 3 - 10
Optimal storage condition 2 - 20 °C
Expiry date (from date of manufacture) 5 years