This heparin affinity medium is designed for purification of biological molecules that interact with sulfated polysaccharides. It uses a polymethyl methacrylate matrix with a hydrophilically modified surface. Sodium heparin is coupled through a long spacer arm to reduce steric hindrance. The ligand can bind antithrombin III, coagulation factors, lipoproteins, interferons, nucleic-acid-binding proteins, restriction enzymes, thrombin, and related molecules. The long spacer improves ligand accessibility and binding capacity. The hydrophilic surface reduces nonspecific adsorption during chromatography. The rigid 80 µm particles support flow from 100 to 800 cm/h and pressure up to 0.8 MPa. The medium is stored in buffered aqueous ethanol at refrigerated temperature.
Specification
Model: Heparin Seplife® LXPM5504 Matrix: Polymethyl methacrylate Ligand: Sodium heparin Particle size: 80 µm Pore size: 1000 Å Ligand density: ≥5 in the source-stated unit Binding capacity: ≥5 mg antithrombin III/mL Maximum pressure: 0.8 MPa Recommended flow: 100-800 cm/h pH stability: 4-10 Storage: 20% ethanol containing 0.05 mol/L sodium acetate at 4-8°C
Features
Long-chain heparin spacer Specific heparin-binding affinity ≥5 mg/mL antithrombin capacity Low nonspecific adsorption Rigid polymeric matrix Up to 800 cm/h flow Suitable for diverse biomolecules Refrigerated buffered storage