Sepromax® SS50 Strong Cation Exchange Resin (50 μm)

Sepromax® SS50 is a high-performance, high-capacity cation exchange resin designed for the efficient separation and purification of biomolecules. Its superior physical and chemical properties make it outstanding in the capture, intermediate purification, and final purification steps of biological samples such as recombinant proteins, peptides, and antibodies.
Application Advantages:
• High Capacity and High Flow Rate: Combining a robust small-particle-size matrix with high-capacity ligands, it enables rapid capture and purification of target products at high linear flow rates, significantly reducing process time.
• High Resolution: The 50 μm particle size provides excellent column efficiency, effectively separating impurities with similar charge properties, such as protein aggregates, charged heteroplasms, host cell proteins (HCPs), and endotoxins, meeting purification requirements.
• Excellent Stability and Recovery: The hydrophilic coating reduces unnecessary loss of target products, while stable chemical properties ensure process reproducibility and consistency.
• Wide Range of Applications: Particularly suitable for the purification of positively charged proteins and peptides at pH conditions below their isoelectric point (pI), making it an ideal choice for downstream purification processes.
Sepromax® SS50 resin achieves an excellent balance between loading capacity, resolution, speed, and recovery rate through the ingenious combination of "rigid hydrophilic spheres" and "high-density grafted ligands". It is a reliable and efficient strong cation exchange chromatography medium suitable for purification needs of various biopharmaceuticals from laboratory research to industrial production.

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Background

Sepromax® IEX is a series of ion exchange packings developed based on PS-DVB microspheres. Its matrix structure is completely different from hydrophilic polysaccharide substrates such as agarose and cellulose. Firstly, it possesses excellent mechanical properties, capable of withstanding pressures up to 10 MPa; secondly, its large 1000 Å pore size ensures the free entry and exit of biomolecules; finally, its unique coating technology imparts sufficient hydrophilicity, guaranteeing excellent biocompatibility.
Sepromax® IEX packings all employ "tentacle" surface derivatization technology, where functional groups are covalently bound to the substrate surface in the form of linear polymer chains. Compared to traditional ion exchange packings that are directly modified on the surface or only use short-chain bound functional groups, Sepromax® IEX not only has a greater number of effective functional groups, but its reduced steric hindrance allows macromolecular proteins, antibodies, viruses, and plasmids to bind more effectively to the packing's functional groups, significantly increasing binding capacity. Furthermore, the "tentacle" structure effectively reduces non-specific interactions between biomolecules and the packing matrix, thereby improving the recovery rate of target molecules.