GromSil 80 SAX is a strong anion exchange (SAX) HPLC column from Dr. Maisch HPLC GmbH, based on high-purity, fully porous silica with an 80 Å pore size and functionalized with quaternary ammonium groups. This phase enables efficient retention and separation of negatively charged species such as organic acids, nucleotides, and acidic pharmaceutical compounds through strong electrostatic interactions.
Its stable surface chemistry ensures high ion-exchange capacity, reproducible retention, and compatibility with aqueous buffer systems, making it ideal for ion-exchange method development and routine analysis.
With its robust ion-exchange properties and high retention strength, GromSil 80 SAX from Dr. Maisch HPLC GmbH is a reliable choice for laboratories focusing on anionic compound separation and method optimization in ion-exchange HPLC.
Strong anion exchange phase with quaternary ammonium groups – USP L14 classification
Fully porous silica with 80 Å pore size
Strong retention of anionic compounds via electrostatic interaction
High chemical stability and batch-to-batch reproducibility
Available in 5 µm and 10 µm particle sizes
Organic acids, nucleotides, and ionizable drug substances
Ion-exchange chromatography in pharmaceutical and biochemical analysis
Salt gradient or isocratic separations using aqueous buffers
Method development for negatively charged or polar analytes
| Particle Sizes |
|
|---|---|
| Pore Size | 80 Å |
| Phase/Modification | SAX |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| Endcapping | No |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| GromSil 80 SAX, 5 µm | GSSA10508. |
| GromSil 80 SAX, 10 µm | GSSA11008. |