| 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 | Weak anion exchanger |
| Ionic Capacity | 0.12–0.15 mmol (Cl - )/mL resin |
| Ligand | Diethylaminoethyl |
| Matrix | cross-linked agarose, 6%, spherical |
| Particle size, d 50V | ~90 µm |
| Pressure/Flow Specification | 300-600 cm/h, 100 kPa, XK 50/30 column, bed height 15 cm |
| Storage | 4 to 30°C, 20% Ethanol |
| pH ligand fully charged | Below 9 |
| pH stability, CIP | 2–14 |
| pH stability, operational | 2–12 |
Answer:It is a weak anion exchange resin with diethylaminoethyl groups. It retains negatively charged molecules under suitable pH and salt conditions.
Answer:The product is supplied in a 10 L bulk-resin pack for packing chromatography columns. It is not a prepacked cartridge or an empty column.
Answer:DEAE is a weak ion exchanger whose charge can vary with pH. Q ligands are strong anion exchangers with permanent positive charge across a broader operating pH range.
Cytiva DEAE Sepharose Fast Flow is a weak anion exchange chromatography resin designed for scalable purification of proteins and other charged biomolecules. The ligand is diethylaminoethyl (DEAE), a weak-base functionality that binds negatively charged target molecules when buffer pH and conductivity favor anion exchange. The matrix uses cross-linked agarose designed for good flow characteristics, chemical stability, and practical scale-up from laboratory development to larger downstream purification columns. The 10 L resin pack supports preparative and process-scale column packing where substantial bed volumes are required. In a typical workflow, the packed resin is equilibrated in low-conductivity start buffer, sample is applied under binding conditions, impurities are washed away, and bound material is eluted by changing salt concentration or pH. DEAE is not equivalent to permanently charged strong-anion exchange ligands such as Q; its charge behavior depends on solution pH. The resin is normally stored in 20% ethanol at 4–30°C before preparation for use.
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