Equisil SAX is a strong anion exchange (SAX) HPLC column based on fully porous, high-purity silica, modified with quaternary ammonium functional groups. This phase provides strong electrostatic retention of negatively charged analytes such as organic acids, nucleotides, and ionic food additives. Equisil SAX offers robust performance and stable retention in buffered aqueous mobile phases, making it ideal for pharmaceutical, environmental, and food analysis applications.
Equisil SAX provides reliable strong anion exchange performance – ideal for laboratories requiring consistent separation of negatively charged analytes.
Quaternary ammonium functional groups for strong anion exchange
High selectivity for acidic and anionic compounds
Fully porous, high-purity silica for stable and reproducible results
Compatible with aqueous buffers and salt gradients
Available in 5 µm
Organic acids, nucleotides, and phosphorylated compounds
Anionic drug substances and metabolites
Food additives and environmental contaminants
Ion-exchange chromatography in pharmaceutical and chemical analysis
| Particle Size |
|
|---|---|
| Pore Size | 120 Å |
| Surface Area | 180 m²/g |
| Phase/Modification | SAX |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | No |
| Carbonload | 5 % |
| pH Range | 2 to 8 |
| Phase | Material Number |
|---|---|
| Equisil SAX, 5 µm | e25.sax. |