Exsil 80 SAX is a silica-based HPLC stationary phase with an 80 Å pore size and a strong anion exchange (SAX) bonded surface featuring quaternary ammonium functional groups. This stationary phase provides strong ionic interactions with negatively charged analytes, enabling highly selective and reproducible separations of acidic and polar compounds.
The controlled pore structure offers a high surface area, supporting high loading capacity, sharp peak shapes, and excellent chromatographic efficiency for small-molecule separations. Exsil 80 SAX is suitable for isocratic and gradient ion-exchange chromatography and can also be combined with organic modifiers to fine-tune selectivity.
Exsil 80 SAX delivers strong ionic retention, high efficiency, and reliable reproducibility, making it a robust choice for anion-exchange HPLC separations of small molecules.
Silica-based HPLC stationary phase with 80 Å pore size
Strong anion exchange (SAX) bonded phase
High selectivity for acidic and negatively charged analytes
High efficiency and reproducible retention behavior
Suitable for ion-exchange and mixed-mode HPLC
Available particle sizes: 5 µm, 10 µm
Separation of acidic pharmaceuticals and drug metabolites
Analysis of organic acids and acidic intermediates
Ion-exchange chromatography of polar small molecules
Method development for anionic compounds
Pharmaceutical, chemical, food, and environmental analysis
| Particle Sizes |
|
|---|---|
| Pore Size | 80 Å |
| Surface Area | 220 m²/g |
| Phase/Modification | SAX |
| Particle Type | |
| Separation Mode | |
| USP Code |
| Phase | Material Number |
|---|---|
| Exsil 80 SAX, 5 µm | 5136495. |
| Exsil 80 SAX, 10 µm | 5136505. |