SUMIPAX ODS L series
SUMIPAX ODS L series are highly end‑capped ODS (C18) columns developed to minimize residual silanol activity. This design provides clean peak shapes and excellent reproducibility, particularly for basic and acidic analytes that are sensitive to secondary interactions. The series is widely used for routine reversed‑phase HPLC where tailing control and robustness are critical.
Product specification
| Series | L series |
|---|---|
| Particle sizes | 3 µm and 5 µm |
| Pore size | 120 Å |
| Specific surface area | 300 m²/g |
| Pore volume | 1.0 mL/g |
| Carbon content | 17% |
| End‑capping | Highly end‑capped |
| Useful pH range | 2.5 – 7.5 |
| Metal impurities | Al, Fe, Ti, Zr, Ca: each < 10 ppm |
Performance evaluation
Manufacturer performance chromatograms are available for this series. (Images omitted on this site.)
Applications (examples)
- Basic pharmaceutical compounds
- Acidic compounds with silanol sensitivity
Where it fits best
- Reversed‑phase HPLC requiring minimal tailing
- Routine QC and method transfer
- Analytes affected by residual silanol interactions
Product list: SUMIPAX ODS L (3 µm)
| Product name | Particle size (µm) | Internal diameter (mm) | Length (mm) | Product code |
|---|---|---|---|---|
| SUMIPAX ODS L-03-2015 | 3 | 2.0 | 150 | AL-03-2015W |
| SUMIPAX ODS L-03-4610 | 3 | 4.6 | 100 | AL-03-4610W |
| SUMIPAX ODS L-03-4615 | 3 | 4.6 | 150 | AL-03-4615W |
| SUMIPAX ODS L-03-4625 | 3 | 4.6 | 250 | AL-03-4625W |
| SUMIPAX ODS L-03-6015 | 3 | 6.0 | 150 | AL-03-6015W |
Note: Compatible SUMIPAX filters are recommended for guard use.
Product list: SUMIPAX ODS L (5 µm)
| Product name | Particle size (µm) | Internal diameter (mm) | Length (mm) | Product code |
|---|---|---|---|---|
| SUMIPAX ODS L-05-2015 | 5 | 2.0 | 150 | AL-05-2015W |
| SUMIPAX ODS L-05-4615 | 5 | 4.6 | 150 | AL-05-4615W |
| SUMIPAX ODS L-05-4625 | 5 | 4.6 | 250 | AL-05-4625W |
| SUMIPAX ODS L-05-6015 | 5 | 6.0 | 150 | AL-05-6015W |
| SUMIPAX ODS L-05-6030 | 5 | 6.0 | 300 | AL-05-6030W |
Note: Compatible SUMIPAX filters are recommended for guard use.