Ultrasep ES 100 Si is a silica-based HPLC column with a 100 Å pore size and an unmodified silica (Si) surface. It is optimized for normal-phase chromatography, offering strong polar interactions such as hydrogen bonding and dipole–dipole forces. This column provides excellent selectivity for polar analytes, structural isomers, and compounds that are difficult to separate in reversed-phase mode.
With its high efficiency, reproducibility, and robust performance, Ultrasep ES 100 Si is an excellent choice for method development and specialized separations in polar compound analysis.
Ultrasep ES 100 Si delivers robust polar selectivity, reproducibility, and efficiency – the trusted choice for normal-phase HPLC separations.
High-purity silica with 100 Å pore size
Unmodified Si surface for strong polar interactions
Designed for normal-phase HPLC applications
Excellent reproducibility, resolution, and peak symmetry
Available particle size: 5 µm
Normal-phase separations of lipids, sterols, and natural products
Separation of structural and positional isomers
Complementary selectivity to reversed-phase HPLC
Method development for polar compound analysis
| Particle Size |
|
|---|---|
| Pore Size | 100 Å |
| Particle Type | |
| Separation Modes | |
| USP Code | |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| Ultrasep ES 100 Si, 5 µm | u15.00. |