Ultrasep ES 100 RP8 is a silica-based HPLC column with a 100 Å pore size and an octyl (C8) bonded phase. Compared to C18 columns, the shorter C8 chains provide moderate hydrophobic retention and faster elution, making this column ideal for compounds that are strongly retained on longer alkyl phases.
The column offers robust performance, excellent reproducibility, and sharp peak symmetry, making it a trusted choice for both routine quality control and method development across various industries.
Ultrasep ES 100 RP8 combines balanced hydrophobic retention, reproducible performance, and reliable selectivity – the versatile choice for efficient reversed-phase HPLC separations.
Silica-based stationary phase with 100 Å pore size
Octyl (C8) bonded phase – USP L7 classification
Moderate hydrophobic retention with shorter run times than C18
High reproducibility, resolution, and column stability
Suitable for a broad range of reversed-phase applications
Available particle sizes: 4 µm, 5 µm, 7 µm, 10 µm
Pharmaceutical compound and impurity analysis
Environmental monitoring of moderately hydrophobic analytes
Food and beverage testing with optimized retention times
Method development requiring balanced hydrophobic selectivity
| Particle Sizes |
|
|---|---|
| Pore Size | 100 Å |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| Ultrasep ES 100 RP8, 4 µm | u14.80. |
| Ultrasep ES 100 RP8, 5 µm | u15.80. |
| Ultrasep ES 100 RP8, 7 µm | u17.80. |
| Ultrasep ES 100 RP8, 10 µm | u10.80. |