Lifetech ECR1640 is a copolymer of divinylbenzene (DVB) and styerene functionalised with quaternary amines. It is used for enzyme immobilization by ionic interaction of the ionizable surface aminoacids (Lys, Arg, His, Asp, Glu) with the tertiary amines on the polymer. It is particularly suitable for immobilization of enzymes with iP in the range 3 - 5 like many glycosidaseses.  Lifetech ECR1640 main features are possibility to regenerate the resin, pH adjustment before immobilization and large particle size for column applications. 

Principal Applications

  • Ionic immobilization of enzymes
  • Ionic interaction of proteins with charged groups on the resin
  • Ionic immobilization requires pH adjustment (resin is supplied at alkaline pH)
  • Optimal for glycosidases immobilization


  • Reversible enzyme immobilization (carrier regeneration with NaOH/HCl)
  • pH of the resin can be adjusted to match the iP of enzymes
  • Particle size optimal for packed bed column configuration
  • FDA compliant
  • Medium hydrophobicity


  • Particularly suitable for column configuration
  • Optimal for applications in food industry

Regulatory Approvals

  • TSE/BSE/GMO free
  • Council of Europe Resolution ResAP (2004)3
  • Halal
  • Kosher
  • Compliant with FDA regulation 21 CFR 173.25

Typical Packaging

  • 50g
  • 250g
  • 1Kg

Typical Physical & Chemical Characteristics:

Ionic Form Chloride
Appearance White to off white beads
Functional Group Type I Quaternary Ammoniun
Supplied as Wet
Particle Size Range 300 - 1200 µm
Total moisture 66 - 72 %
Total Capacity (min.) 0.85 - eq/l (Cl- form)
pH limit stability 1 - 14
Shipping Weight (approx.) 640 - 690 g/l
Shipping Weight (approx.) 40 - 43.125 lb/ft³
Recommended Storage 2 - 20 °C
Expiry date (from date of manufacture) 5 years