Equisorb SAX is an anion exchange HPLC column packed with fully porous, high-purity silica particles functionalized with strong quaternary ammonium groups. This strong anion exchange (SAX) phase enables the retention and separation of acidic and negatively charged analytes through ionic interactions, making it ideal for ion chromatography and the analysis of organic acids, nucleotides, and polar metabolites. The column offers high selectivity, good reproducibility, and compatibility with aqueous buffers over a broad pH range.
Equisorb SAX provides reliable strong anion exchange selectivity – ideal for laboratories working with acidic analytes and ionic separations in complex matrices.
Strong anion exchange phase with quaternary ammonium groups – USP L14
Selective retention of negatively charged and acidic compounds
Fully porous high-purity silica for stable performance
Suitable for aqueous buffer systems in ion chromatography
High reproducibility for routine and regulated applications
Separation of organic acids, nucleotides, and sugar phosphates
Ion-exchange chromatography of anionic compounds
Environmental and food analysis of polar acids
Bioanalytical applications involving charged metabolites
| Particle Sizes |
|
|---|---|
| Pore Size | 80 Å |
| Surface Area | 220 m²/g |
| Phase/Modification | SAX |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | No |
| Carbonload | 8 % |
| Phase | Material Number |
|---|---|
| Equisorb SAX, 3 µm | e03.sa. |
| Equisorb SAX, 5 µm | e05.sa. |
| Equisorb SAX, 10 µm | e00.sa. |