Exsil Avanti BDS Phenyl is a high-performance phenyl-bonded silica stationary phase built on the advanced base-deactivated Avanti BDS platform. Designed for demanding reversed-phase HPLC and UHPLC applications, this phase combines aromatic π–π interaction capability with minimized silanol activity to deliver improved peak symmetry and reproducible retention behavior.
The phenyl functionality introduces additional π–π stacking, dipole interactions, and shape selectivity, providing complementary separation characteristics compared to traditional C18 or C8 phases. Thanks to the base-deactivated silica surface, secondary interactions with residual silanol groups are significantly reduced. This results in sharper peaks — particularly for basic and aromatic compounds—while maintaining strong and stable retention. Exsil Avanti BDS Phenyl is especially suitable for the separation of aromatic pharmaceuticals, heterocycles, polyaromatic compounds, and structurally related isomers. The highly purified spherical silica matrix ensures excellent mechanical strength, consistent packing quality, and reliable performance under high-pressure UHPLC conditions.
Exsil Avanti BDS Phenyl combines aromatic interaction selectivity with advanced base-deactivation technology — delivering precise, reproducible, and high-resolution reversed-phase separations for complex aromatic analytes.
Base-deactivated (BDS) phenyl bonded phase
Enhanced aromatic selectivity via π–π interactions
Reduced silanol activity for improved peak symmetry
Complementary selectivity to C18 and C8 phases
High efficiency and reproducible chromatographic results
Suitable for HPLC and UHPLC applications
Separation of aromatic pharmaceuticals and impurities
Isomer resolution of structurally related compounds
Analysis of heterocycles and conjugated systems
Environmental and food safety testing
Method development requiring alternative RP selectivity
| Particle Sizes |
|
|---|---|
| Pore Size | 145 Å |
| Surface Area | 185 m²/g |
| Phase/Modification | Phenyl |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | Yes |
| Carbonload | 5 % |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| Exsil Avanti BDS Phenyl, 3 µm | 5136644. |
| Exsil Avanti BDS Phenyl, 5 µm | 5136645. |