ReproSil Star SAX-2 is an endcapped, silica-based HPLC column featuring strong anion exchange functionality. As an enhanced version of ReproSil Star SAX, this phase combines the powerful ion-exchange capacity of quaternary ammonium groups with an additional endcapping step that minimizes residual silanol activity. The result is improved peak symmetry, reduced secondary interactions, and highly reproducible retention for negatively charged analytes.
Engineered on high-purity, mechanically stable silica, ReproSil Star SAX-2 delivers reliable performance even under varying pH and buffer conditions. This makes it ideal for demanding applications in pharmaceutical, biochemical, and biotechnological separations, where precision and robustness are essential.
ReproSil Star SAX-2 unites strong anion exchange performance with the benefits of endcapping – the advanced choice for precise, stable, and reproducible anion exchange separations in HPLC.
Endcapped silica-based stationary phase with strong anion exchange (SAX) functionality
Improved peak shapes and reduced secondary interactions compared to non-endcapped SAX
Strong retention and high selectivity for negatively charged analytes
Excellent reproducibility under diverse chromatographic conditions
Suitable for analytical and preparative workflows
Manufactured and QC-tested by Dr. Maisch HPLC GmbH
Separation of organic acids, nucleotides, and other anionic biomolecules
Pharmaceutical analysis of ionizable compounds and impurities
Biotechnological research requiring high selectivity and reproducibility
Method development in ion exchange and mixed-mode chromatography
| Particle Size |
|
|---|---|
| Pore Size | 200 Å |
| Surface Area | 160 m²/g |
| Phase/Modification | Propyl-SAX |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | Yes |
| Carbonload | 7 % |
| pH Range | 2 to 10 |
| Phase | Material Number |
|---|---|
| ReproSil Star SAX-2, 5 µm | star5.sax2. |