GromSil 120 NP-2 is a high-purity, unmodified silica column from Dr. Maisch HPLC GmbH, packed with fully porous silica featuring a 120 Å pore size. Designed for traditional normal-phase chromatography, this phase provides strong polar retention through surface silanol interactions and is particularly effective for separating small, polar analytes and structural isomers.
Its uniform surface activity and mechanical stability make it suitable for both analytical and preparative applications involving adsorption or polarity-based separation mechanisms.
With its robust retention and reproducible performance, GromSil 120 NP-2 from Dr. Maisch HPLC GmbH is the ideal choice for laboratories requiring reliable normal-phase separations of polar and non-derivatized analytes.
Unmodified bare silica phase – USP L3 classification
Fully porous silica with 120 Å pore size
Strong retention of polar and hydroxylated analytes
Stable performance with non-aqueous mobile phases
Available in 3 µm, 5 µm, and 10 µm particle sizes
Separation of polar drug substances, sugar derivatives, and alcohols
Normal-phase chromatography with hexane, heptane, or ethyl acetate
Dry-loading or adsorption-based sample cleanup
Orthogonal method development to reversed-phase and HILIC techniques
| Particle Sizes |
|
|---|---|
| Pore Size | 120 Å |
| Phase/Modification | Si |
| Particle Type | |
| Separation Modes | |
| USP Code | |
| Endcapping | No |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| GromSil 120 NP-2, 3 µm | GSNP20312. |
| GromSil 120 NP-2, 5 µm | GSNP20512. |
| GromSil 120 NP-2, 10 µm | GSNP21012. |
| GromSil 120 NP-2, 20 µm | GSNP22012. |