Ultrasep ES Pharm-Spezial RP18 is a silica-based HPLC column with a specialty C18 bonded phase, designed for pharmaceutical applications where strong hydrophobic retention and enhanced robustness are required. Compared to standard RP18 columns, the “Spezial” bonding chemistry provides improved stability and reproducibility under demanding analytical conditions.
The column delivers sharp peak shapes, reliable retention, and long operational lifetimes, making it ideal for pharmaceutical quality control, impurity profiling, and stability-indicating assays. Its multiple particle size options provide flexibility for different analytical needs, from high-efficiency separations to routine quality control.
Ultrasep ES Pharm-Spezial RP18 offers pharmaceutical-grade C18 performance with enhanced robustness – the dependable choice for demanding HPLC separations in drug development and quality control.
Silica-based stationary phase with specialty C18 bonded chemistry
Strong hydrophobic retention for a wide range of analytes
Specialty bonding for improved stability and reproducibility
Reliable peak symmetry and consistent results under routine use
Available particle sizes: 4 µm, 5 µm, 7 µm
Pharmaceutical impurity profiling and stability testing
Analysis of hydrophobic drugs, metabolites, and excipients
Quality control and regulatory compliance testing
Method development requiring robust and reproducible C18 selectivity
| Particle Sizes |
|
|---|---|
| Pore Size | 100 Å |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | No |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| Ultrasep ES Pharm Spezial RP18, 4 µm | u14.ps9. |
| Ultrasep ES Pharm Spezial RP18, 5 µm | u15.ps9. |
| Ultrasep ES Pharm Spezial RP18, 7 µm | u17.ps9. |