Exsil 80 Octyl is a silica-based HPLC stationary phase with an 80 Å pore size and an octyl (C8) bonded surface, designed for balanced reversed-phase separations of small molecules. The medium-length alkyl chain provides moderate hydrophobic retention, enabling faster elution compared to C18 phases while maintaining good resolution and selectivity.
The controlled pore structure and high surface area of Exsil 80 Octyl support high chromatographic efficiency, sharp peak shapes, and reproducible retention behavior. This makes the phase particularly suitable for analytes that are excessively retained on C18 columns or require shorter analysis times.
Exsil 80 Octyl offers balanced retention, high efficiency, and reliable performance, making it a practical choice for fast and reproducible reversed-phase HPLC separations of small molecules.
Silica-based HPLC stationary phase with 80 Å pore size
Octyl (C8) bonded phase for moderate hydrophobic retention
Faster elution compared to C18 with maintained selectivity
High efficiency and reproducible chromatographic performance
Optimized for small-molecule reversed-phase HPLC
Available particle sizes: 3 µm, 5 µm, 10 µm
Reversed-phase separation of low-molecular-weight pharmaceuticals
Analysis of moderately hydrophobic compounds
Method development requiring reduced retention strength
High-throughput HPLC with shorter run times
Food, environmental, and chemical analysis
| Particle Sizes |
|
|---|---|
| Pore Size | 80 Å |
| Surface Area | 220 m²/g |
| Phase/Modification | C8 |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | Yes |
| Carbonload | 6 % |
| pH Range | 2 to 8 |
| Phase | Material Number |
|---|---|
| Exsil 80 Octyl, 3 µm | 5136481. |
| Exsil 80 Octyl, 5 µm | 5136492. |
| Exsil 80 Octyl, 10 µm | 5136503. |