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The Xtimate C18 HPLC column 250x4.6mm, 5µm, is based on an organo-inorganic hybrid surface with an end-capped octadecyl modification (ODS, RP-18, C18). Xtimate C18 is a pH-robust universal reversed phase for pharmaceutical active substances, impurities, food components, environmental analytes and method development.
The Xtimate family comprises various base materials and therefore should not be considered to have a uniform column chemistry. For SEC phases, the number indicates the nominal pore size and thus the accessible size range; molecular weight ranges are always calibration-dependent. For sugar phases, the counterion, eluent, and temperature must be tailored to the desired ligand exchange mechanism.
Xtimate is a product line from Welch Materials, Inc. The product and phase names mentioned are part of the manufacturer's chromatography portfolio.
| Brand | Xtimate |
|---|---|
| Product Type | HPLC Column |
| Length | 250 mm |
| Internal Diameter | 4.6 mm |
| Particle Size | 5 µm |
| Chemistry | C18 (RP-18, ODS, Octadecyl) |
| Chemistry Producers Term | C18 |
| Pore Size | 120 Å |
| USP Class | L1 |
| Carbon Load | 14.0 % |
| Bet Surface Area [m2/g] | 320.0 |
| Endcapping | endcapped |
| Country of Origin | People's Republic of China |
| Column Type | Analytical Column |
| Hardware Material | Stainless Steel |
| Hardware Type | Ready-to-use Column |
| pH Minimum | 1.0 |
| pH Maximum | 12.5 |
| Mode of Separation | Reversed Phase Chromatography (RP) |
| Technology | HPLC |
| Matrix | Hybrid |
| Particle Morphology | spherical, fully porous |
| Number Theoretical Plates | > 90000 |