Reprospher 200 Si is a high-purity, unmodified silica HPLC column from Dr. Maisch HPLC GmbH, featuring a fully porous silica matrix with a 200 Å pore size. The wide-pore structure and active silanol surface make this phase ideal for classical normal-phase chromatography and adsorption-based separations of larger polar compounds, such as peptides, carbohydrates, and natural products. Its stable retention behavior and high surface activity provide excellent resolution for polar analytes and allow effective method development under non-aqueous conditions.
This wide-pore bare silica phase from Dr. Maisch HPLC GmbH is the ideal choice for high-resolution normal-phase separations involving large, polar molecules and method development requiring strong surface interaction.
Bare silica phase – USP L3 classification
Fully porous, high-purity silica with 200 Å pore size
Strong polar interaction for normal-phase and dry loading applications
High surface activity and excellent peak shape for polar analytes
Available in 5 µm
Normal-phase chromatography of peptides and polar organics
Adsorption separations of natural products and glycosylated compounds
Sample pre-purification and dry-loading in preparative LC
Orthogonal selectivity to reversed-phase and HILIC methods
| Particle Size |
|
|---|---|
| Pore Size | 200 Å |
| Surface Area | 160 m²/g |
| Phase/Modification | Si |
| Particle Type | |
| Separation Modes | |
| USP Code | |
| Endcapping | No |
| Carbonload | 0 % |
| pH Range | 2 to 8 |
| Phase | Material Number |
|---|---|
| Reprospher 200 Si, 5 µm | rs25.00. |