Kromasil 100-5-NH2 50 x 250 mm (XP)

The Kromasil 100 NH2 HPLC column 250x50mm, 5µm, features an amino modification on 100 Å silica. The polar amino group enables retention via HILIC, normal-phase and ionic interactions. Kromasil 100 NH2 is particularly suitable for polar compounds that are only weakly retained on C18 phases. Typical applications include carbohydrates, sugars, organic acids, water-soluble vitamins, polar active substances, pharmaceutical excipients and methods where both hydrophilic and weak ionic interactions are to be utilised.

Performance Characteristics and Benefits

• Spherical, fully porous silica with high mechanical stability
• High surface area and high pore volume for efficient separations and good loading capacity
• Narrow particle size distribution for high efficiency and reproducible results
• Broad phase spectrum for reverse-phase, normal-phase, HILIC, and SFC
• Suitable for analytical method development, routine analysis, scale-up, and preparative applications

Additional Information

The Kromasil series is based on highly stable, spherical, and fully porous silica particles. The silica matrix combines a high surface area, high pore volume, and a controlled pore structure with a narrow particle size distribution. This supports efficient packing beds, low pressure drops relative to performance, and good column and batch reproducibility. The Kromasil platform offers different pore sizes: 60 Å for small organic molecules, 100 Å for small molecules and peptides, and 300 Å for proteins and larger biomolecules. Appropriate Kromasil pre-column cartridges can be used to protect the analytical packing bed from particles, sample matrix, and hard-to-elute components.

Legal Notices

Kromasil is a registered trademark of the manufacturer Nouryon, Bohus, Sweden.