ReproSil Star RP18-e is a silica-based HPLC column featuring an endcapped C18 bonded phase, specifically developed for high-performance separations in pharmaceutical and biotechnical applications. The endcapping minimizes residual silanol activity, resulting in improved peak symmetry, reproducible retention, and excellent performance for basic, polar, and hydrophobic analytes alike.
The high-purity silica matrix of the ReproSil Star series ensures mechanical and chemical stability, delivering consistent results even under demanding gradient or pH conditions. ReproSil Star RP18-e provides strong hydrophobic retention, high efficiency, and broad applicability, making it a versatile choice for method development, quality control, and research workflows.
ReproSil Star RP18-e combines robust silica technology with endcapped C18 selectivity – the reliable choice for high-efficiency and reproducible HPLC separations in pharmaceutical and biotechnical analysis.
Attractive Alternative to Purospher Star RP18e (Merck).
Fully porous, ultra-pure silica with 120 Å pore size
Endcapped C18 bonding – USP L1 classification
Strong hydrophobic retention with excellent peak shapes
Reduced silanol activity for better performance with basic analytes
Manufactured and QC-tested by Dr. Maisch HPLC GmbH
Pharmaceutical drug substance and impurity profiling
Environmental monitoring of hydrophobic pollutants
Food and beverage quality control
Method development for robust reversed-phase separations
| Particle Sizes |
|
|---|---|
| Pore Size | 120 Å |
| Surface Area | 300 m²/g |
| Phase/Modification | C18 |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | Yes |
| Carbonload | 17 % |
| pH Range | 2 to 8 |
| Phase | Material Number |
|---|---|
| ReproSil Star RP18-e, 2 µm | star2.9e. |
| ReproSil Star RP18-e, 3 µm | star3.9e. |
| ReproSil Star RP18-e, 5 µm | star5.9e. |
| ReproSil Star RP18-e, 10 µm | star0.9e. |