Prep HPLC Scale-Up¶
Scaling Peptide Purification from Lab to Production¶
Column Scaling Principles¶
Linear Scale-Up¶
The standard approach: keep column length and linear velocity constant, increase column diameter.
| Parameter | Lab (10 mm) | Pilot (50 mm) | Production (100 mm) |
|---|---|---|---|
| Cross-section area | 0.79 cm² | 19.6 cm² | 78.5 cm² |
| Scale factor | 1× | 25× | 100× |
| Flow rate | 5 mL/min | 125 mL/min | 500 mL/min |
| Max load (crude) | 20 mg | 500 mg | 2 g |
Particle Size Selection¶
| Particle Size | Efficiency | Pressure | Load Capacity | Scale |
|---|---|---|---|---|
| 5 μm | Highest | High | Low | Analytical |
| 10 μm | High | Medium | Medium | Lab prep |
| 15–20 μm | Good | Low | High | Process |
| 30 μm | Moderate | Very low | Very high | Production |
How to Transfer a Gradient from Analytical to Prep Scale?¶
To transfer a gradient from analytical to preparative scale:
- Use same column volumes for gradient
- Keep linear velocity constant
- Sample loading: scale by column volume × sample concentration
What Are Production-Scale HPLC Considerations?¶
| Factor | Consideration |
|---|---|
| Column hardware | Dynamic axial compression (DAC) for >50 mm |
| Solvent consumption | 10–50 L per batch (recycle where possible) |
| Fraction collection | Automated peak-based collection |
| Product recovery | 70–85% typical for single pass |
| Re-purification | Sometimes needed for >98% purity |
- Scaling Peptide Purification from Lab to Production — Review the section above for key parameters, methods, and quality criteria.
- Column Scaling Principles — Review the section above for key parameters, methods, and quality criteria.
- How to Transfer a Gradient from Analytical to Prep Scale? — See the section for detailed parameters and specifications.
- What Are Production-Scale HPLC Considerations? — See the section for detailed parameters and specifications.
Key Takeaways¶
- Scaling Peptide Purification from Lab to Production — Review the section above for key parameters, methods, and quality criteria.
- Column Scaling Principles — Review the section above for key parameters, methods, and quality criteria.
- How to Transfer a Gradient from Analytical to Prep Scale? — See the section above for detailed parameters and specifications.
- What Are Production-Scale HPLC Considerations? — See the section above for detailed parameters and specifications.
🔗 Related: Preparative HPLC | Purification Process | Scale-Up Considerations