Ultrasep ES 100 Dimethyl RP18 is a silica-based HPLC column with a 100 Å pore size and a dimethyl endcapped C18 bonded phase. The combination of strong hydrophobic retention from the C18 chains and reduced silanol activity due to endcapping ensures excellent peak symmetry, particularly for basic and polar analytes.
This column provides high separation efficiency, excellent reproducibility, and robust performance, making it suitable for both routine QC tasks and method development in pharmaceutical, environmental, and food analysis.
Ultrasep ES 100 Dimethyl RP18 combines strong hydrophobic retention, endcapped stability, and reproducible performance – the reliable choice for reversed-phase HPLC separations across diverse applications.
Silica-based stationary phase with 100 Å pore size
Dimethyl endcapped octadecyl (C18) bonded phase – USP L1 classification
Strong hydrophobic retention with reduced silanol interactions
Excellent reproducibility, resolution, and peak symmetry
Suitable for basic and polar compounds
Available particle size: 5 µm
Pharmaceutical compound and impurity profiling
Separation of basic and polar analytes with improved peak shapes
Environmental and food testing under reversed-phase conditions
Method development requiring robust C18 selectivity
| Particle Size |
|
|---|---|
| Pore Size | 100 Å |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| Ultrasep ES 100 Dimethyl RP18, 5 µm | u15.dm9. |