Adsorbosphere SAX (Strong Anion Exchange) is a silica-based HPLC column functionalized with quaternary ammonium groups, providing strong and permanent positive charges on the stationary phase. This enables highly selective retention of negatively charged analytes through electrostatic interaction, making it ideal for ion-exchange chromatography of inorganic and organic acids, nucleotides, and polar metabolites.
Built on high-purity, fully porous silica, Adsorbosphere SAX offers excellent batch-to-batch consistency, mechanical stability, and reproducible retention behavior – even under challenging pH conditions.
Adsorbosphere SAX is a powerful tool for selective ion-exchange separations — delivering precise control over anionic compound retention across a wide range of analytical applications.
Strong anion exchange (SAX) phase with quaternary amine functionality
High selectivity for negatively charged compounds
Suitable for aqueous eluents with buffer salts and pH control
Robust bonded chemistry with good column lifetime
Available in 3 µm, 5 µm and 10 µm particle sizes
Compatible with standard HPLC systems and suppressed conductivity detection
Inorganic and organic acid separation
Nucleotides, phosphorylated compounds, and metabolites
Anionic polar pesticides and food additives
Water and environmental ion analysis
Ion-exchange method development for acidic pharmaceuticals
| Particle Sizes |
|
|---|---|
| Pore Size | 100 Å |
| Surface Area | 200 m²/g |
| Phase/Modification | SAX |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | No |
| Carbonload | 8 % |
| Phase | Material Number |
|---|---|
| Adsorbosphere SAX, 3 µm | 5200039. |
| Adsorbosphere SAX, 5 µm | 5200040. |
| Adsorbosphere SAX, 10 µm | 5200041. |