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|
|Key performance benefits:|
|Specification of Purospher® STAR RP-18 endcapped|
|Sorbent characteristics||High purity silica with polymeric C18 modification and endcapping|
|Metal content||Na, Ca, Mg, Al: 1 ppm; Fe: 3 ppm|
|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|
|Surface chemistry of Puropsher® STAR RP-18 endcapped|
|The polymeric surface modification of Purospher® STAR RP-18 endcapped provides a nearly perfect coverage of the surface.
This prevents from silanophilic interactions.
|Key applications are:
Purospher® STAR 4 Pharma
|Purospher® STAR 4 Food & Beverage|