| BioProcess resin | Yes |
|---|---|
| Certificate of Analysis | Yes |
| Chemical stability | Stable to commonly used aqueous buffers:1.0 M NaOH, 8 M urea, 8 M guanidine hydrochloride, 70% ethanol |
| Exclusion limit (M r ) (globular proteins) | ~4 × 10⁶ |
| Ion Exchanger Type | Strong cation exchanger |
| Ionic Capacity | 0.18-0.25 mmol H + /ml medium |
| Ligand | Sulphopropyl |
| Matrix | cross-linked agarose, 6%, spherical |
| Particle Size | 45 µm-165 µm |
| Particle size, d 50V | ~90 µm |
| Pressure/Flow Specification | 400-700 cm/h, 100 kPa, XK 50/30 column, bed height 15 cm |
| Storage | 4 to 30°C, 20% Ethanol + 0.2 M Sodium Acetate |
| pH ligand fully charged | Entire pH range |
| pH stability, CIP | 3–14 |
| pH stability, operational | 4–13 |
Answer:SP Sepharose Fast Flow uses sulfopropyl groups for strong cation exchange.
Answer:This configuration supplies 10 L of bulk resin.
Answer:SP binds suitable positively charged species; Q is an anion exchanger.
SP Sepharose™ Fast Flow is a strong cation exchange resin for downstream purification of proteins and other charged biological molecules. Sulfopropyl functional groups on the cross-linked agarose matrix provide negatively charged binding sites that interact with positively charged proteins in appropriate buffer conditions. The medium supports ion-exchange capture, intermediate purification, and polishing steps where salt concentration or pH can be adjusted to control retention and elution. This 10 L bulk-resin package is intended for column packing and scale-appropriate chromatographic operation rather than direct use as a prepacked device. Typical process development involves evaluating buffer conductivity, protein charge, flow, and regeneration conditions. Selection of this cation exchanger should be based on the target protein and impurity charge profiles.
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