GromSil 80 NP-1 is a normal-phase HPLC column from Dr. Maisch HPLC GmbH, based on high-purity, fully porous silica with an 80 Å pore size and unmodified surface. This bare silica phase offers strong polar retention through active silanol groups, making it ideal for traditional adsorption chromatography and the separation of polar, isomeric, or functionalized analytes.
Its intermediate pore size and high mechanical stability support reproducible separations under non-aqueous conditions, particularly in method development or orthogonal workflows.
Offering robust retention and surface activity, GromSil 80 NP-1 from Dr. Maisch HPLC GmbH is a reliable choice for normal-phase chromatographic workflows targeting small polar compounds and structurally related analytes.
Unmodified bare silica – USP L3 classification
Fully porous silica with 80 Å pore size
Strong silanol-based interactions for polar retention
Suitable for normal-phase and adsorption chromatography
Available in 3 µm, 5 µm, and 10 µm particle sizes
Separation of alcohols, amines, acids, and sugar derivatives
Normal-phase LC using hexane, heptane, or ethyl acetate
Dry-loading and sample preparation in preparative LC
Orthogonal method development to reversed-phase and HILIC systems
| Particle Sizes |
|
|---|---|
| Pore Size | 80 Å |
| Phase/Modification | Si |
| Particle Type | |
| Separation Modes | |
| USP Code | |
| pH Range | 2 - 8 |
| Phase | Material Number |
|---|---|
| GromSil 80 NP-1, 3 µm | GSNP10308. |
| GromSil 80 NP-1, 5 µm | GSNP10508. |