Ultrasep ES 100 RP18 is a silica-based HPLC column with a 100 Å pore size and an octadecyl (C18) bonded phase. As the industry standard for reversed-phase chromatography, this column offers strong hydrophobic retention, broad applicability, and high reproducibility, making it suitable for a wide range of analytes in pharmaceutical, environmental, and food analysis.
The robust C18 chemistry ensures excellent peak symmetry, long column lifetime, and reliable performance, making it a trusted workhorse for both routine QC and method development.
Ultrasep ES 100 RP18 combines strong hydrophobic retention, reproducibility, and durability – the proven choice for versatile reversed-phase HPLC separations.
Silica-based stationary phase with 100 Å pore size
Octadecyl (C18) bonded phase – USP L1 classification
Strong hydrophobic retention and broad selectivity
High reproducibility, resolution, and column stability
Suitable for routine and advanced reversed-phase applications
Available particle sizes: 3 µm, 4 µm, 5 µm, 6 µm, 7 µm, 10 µm
Pharmaceutical compound and impurity profiling
Environmental monitoring of hydrophobic contaminants
Food and beverage testing with broad selectivity needs
General-purpose method development in reversed-phase HPLC
| Particle Sizes |
|
|---|---|
| Pore Size | 100 Å |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| Ultrasep ES 100 RP18, 3 µm | u13.90. |
| Ultrasep ES 100 RP18, 4 µm | u14.90. |
| Ultrasep ES 100 RP18, 5 µm | u15.90. |
| Ultrasep ES 100 RP18, 6 µm | u16.90. |
| Ultrasep ES 100 RP18, 7 µm | u17.90. |
| Ultrasep ES 100 RP18, 10 µm | u10.90. |