Kromasil Classic columns meet the highest requirements in both analytical and preparative HPLC. This is ensured by the many strengths of the spherical Kromasil Classic silica gels:

large surface area
mechanical stability
chemical stability
chemical purity
optimal surface properties
defined pore structure
The spherical Kromasil HPLC silica gels are manufactured with pore diameters of 60 Å, 100 Å and 300 Å to enable the separation of small and medium-sized analytes (up to 10 kg∙mol-1) as well as large molecules such as proteins and biomolecules.< br>
The silica gels are available in particle sizes from 1.8 µm to 16 µm. Larger particles are also available on request.

Narrow particle size distributions ensure high efficiency, low pressure drop and the economy of chromatographic processes.