Ultrasep ES 100 Methyl-RP18 is a silica-based HPLC column with a 100 Å pore size and an octadecyl (C18) bonded phase combined with methyl endcapping. This configuration ensures strong hydrophobic retention while reducing residual silanol activity, resulting in improved peak symmetry, particularly for basic and polar analytes.
The column is designed for robust performance and delivers high efficiency, reproducibility, and long lifetime across a wide range of reversed-phase HPLC applications.
Ultrasep ES 100 Methyl-RP18 combines strong hydrophobic retention, endcapped stability, and reproducible performance – the reliable choice for high-performance reversed-phase HPLC separations.
Silica-based stationary phase with 100 Å pore size
Octadecyl (C18) bonded phase with methyl endcapping – USP L1 classification
Strong hydrophobic retention for a wide analyte range
Reduced silanol activity for sharper peak shapes
Excellent reproducibility and column durability
Available particle size: 7 µm
Pharmaceutical compound and impurity profiling
Separation of polar and basic analytes with improved peak symmetry
Environmental and food testing of hydrophobic compounds
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 Methyl-RP18, 7 µm | u17.m9. |