Purospher® STAR RP-18 endcapped
The versatility you need!
Purospher® STAR RP-18 endcapped HPLC columns are designed for universal use. Basic, neutral, metal chelating could easily be separated with simple mobile phases – naturally without peak tailing!
Thanks to its outstanding performance and stability, Purospher® STAR RP-18 endcapped offers maximum flexibility in method development. Robust methods can be developed over the entire pH range from 1.5 to 10.5. The high pH-stability up to pH 10.5 allows the separation of strongly basic compounds with alkaline eluents.
The combination of high purity silica, best all-round retention characteristics, outstanding pH stability up to pH 10.5, and suitability for up to 100% aqueous mobile phases, make Purospher® STAR RP-18 endcapped an all-round top performance column, almost universal in its range of applications.
| Experience the performance of Purospher® STAR RP-18 endcapped |
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| Key performance benefits: |
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| Specification of Purospher® STAR RP-18 endcapped | |
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| Sorbent characteristics | High purity silica with polymeric C18 modification and endcapping |
| Metal content | Na, Ca, Mg, Al: 1 ppm; Fe: 3 ppm |
| Particle shape | spherical |
| Particle size | 2 µm, 3 μm and 5 μm |
| Pore size | 120 Å (12 nm) |
| Pore volume | 1.1 mL/g |
| Spec. surface area | 330 m²/g |
| Carbon load | 17 % C |
| Coverage of the surface | 3 μmol/m² |
| pH range | pH 1.5 - 10.5 |
| Efficiency | 5 μm: > 90.000 N/m; 3 μm: > 130.000 N/m, 2 µm > 180.000 N/m |
| Shipping eluent | Acetonitrile/Water |
| Surface chemistry of Puropsher® STAR RP-18 endcapped | |
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| The polymeric surface modification of Purospher® STAR RP-18 endcapped provides a nearly perfect coverage of the surface. This prevents from silanophilic interactions. |
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| Key applications are: Purospher® STAR 4 Pharma |
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| Purospher® STAR 4 Food & Beverage |
