GromSil 120 Butyl-1 ST is a reversed-phase HPLC column from Dr. Maisch HPLC GmbH, packed with high-purity, fully porous silica featuring a 120 Å pore size and bonded with butyl (C4) ligands. This short-chain alkyl phase provides lower hydrophobic retention compared to C18 or C8, making it ideal for the rapid elution of strongly retained or lipophilic analytes.
It is particularly useful for applications that require fast gradients, short run times, or reduced interaction strength — without compromising peak shape or reproducibility.
With its low hydrophobic interaction and reliable performance, GromSil 120 Butyl-1 ST from Dr. Maisch HPLC GmbH is ideal for rapid reversed-phase separations and efficient analysis of lipophilic compounds.
Butyl (C4) bonded reversed-phase phase – USP L26 classification
Fully porous silica with 120 Å pore size
Low hydrophobicity for fast elution of strongly retained compounds
Excellent peak symmetry and efficiency
Available in 3 µm, 5 µm, and 10 µm particle sizes
Hydrophobic pharmaceuticals, peptides, and lipid-based analytes
Method development with shortened analysis times
Reversed-phase LC-MS and UV detection with fast gradients
Screening of analytes requiring mild retention conditions
| Particle Sizes |
|
|---|---|
| Pore Size | 120 Å |
| Phase/Modification | C4 |
| Particle Type | |
| Separation Mode | |
| USP Code | |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| GromSil 120 Butyl-1 ST, 3 µm | GSBU10312. |
| GromSil 120 Butyl-1 ST, 5 µm | GSBU10512. |
| GromSil 120 Butyl-1 ST, 10 µm | GSBU11012. |