ReproSil Star SAX is a silica-based HPLC column functionalized with strong anion exchange groups, designed for the reliable separation of negatively charged analytes in pharmaceutical and biotechnical chromatography. The quaternary ammonium functionality provides permanent positive charges, enabling strong and selective interactions with anionic species such as acids, nucleotides, and other ionizable biomolecules. Built on high-purity, mechanically stable silica, ReproSil Star SAX delivers reproducible retention, high efficiency, and robust performance under varying buffer conditions. Its strong ion-exchange capacity makes it a preferred choice for applications where selectivity, stability, and reproducibility are critical.
ReproSil Star SAX combines strong anion exchange selectivity with silica robustness – the dependable choice for accurate and reproducible separation of anionic analytes in HPLC.
Fully porous, ultra-pure silica with strong anion exchange functionality
Quaternary ammonium groups for strong retention of anionic analytes
High efficiency, resolution, and peak symmetry
Suitable for isocratic and gradient ion-exchange methods
Manufactured and QC-tested by Dr. Maisch HPLC GmbH
Separation of acidic pharmaceuticals and metabolites
Analysis of organic acids and anionic food additives
Environmental monitoring of anionic contaminants
Method development for polar compound separations
| Particle Sizes |
|
|---|---|
| Pore Size | 200 Å |
| Surface Area | 160 m²/g |
| Phase/Modification | Propyl-SAX |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | No |
| Carbonload | 7 % |
| pH Range | 2 to 8 |
| Phase | Material Number |
|---|---|
| ReproSil Star SAX, 5 µm | star5.sax. |
| ReproSil Star SAX, 7 µm | star7.sax. |