| Chromatography technique | Ion Exchange Chromatography |
|---|---|
| Avoid Using | Oxidizing agents, anionic detergents |
| Binding Capacity/ml Chromatography Medium | > 55 mg BSA, > 48 mg β-lactoglobulin |
| BioProcess resin | Yes |
| Certificate of Analysis | Yes |
| Chemical stability | Commonly used aqueous buffers, 1 M NaOH, 8 M urea, 6 M guanidine hydrochloride, 30% isopropanol and 70 % ethanol |
| Ionic Capacity | 0.15-0.18 mmol Cl - /ml medium |
| Ligand | Quaternary amine |
| Matrix | High-flow agarose |
| Particle Size | 36-44 μm (d 50V ) |
| Pressure/Flow Specification | 300 kPa at min. 220 cm/h, 1 m diameter column, 20 cm bed height |
| Storage | 4 to 30°C, 20% Ethanol |
| pH stability, CIP | 2–14 |
| pH stability, operational | 2–12 |
Answer:It is a strong anion exchanger based on quaternary ammonium functionality.
Answer:The package supplies 100 mL of Capto Q ImpRes bulk chromatography resin for column packing.
Answer:High-resolution intermediate purification and polishing of proteins and other biomolecules.
Capto™ Q ImpRes is a high-resolution strong anion-exchange resin for intermediate purification and polishing of biomolecules. Its quaternary ammonium functionality retains anion-exchange characteristics over a broad working pH range, while the high-flow agarose matrix and relatively small bead format support sharp separations. The medium is useful where closely related product forms or charged impurities must be resolved without sacrificing preparative throughput. Establish binding conditions by screening buffer pH and conductivity, then develop a salt gradient or step elution that separates the desired product from the impurity profile. Because peak resolution depends on bed height, flow, loading and feed composition, scale-up should preserve the controlling process parameters rather than replicate laboratory flow rates mechanically. Evaluate pressure drop and dynamic binding capacity with representative feed samples. The 100 mL bulk-resin package is suitable for packing a method-development or preparative column. It is distinct from a prepacked HiTrap, HiScreen or ReadyToProcess device.
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