Nacalai Tesque COSMOSIL 5C18-P Packed Column, 5 µm, 4.6 mm I.D. x 50 mm - 39240-31 *OBSOLETE*

This column is based on an ultra-pure silica gel (more than 99.99%) with carbon content of only 8.5%. Therefore the retention of polar compounds is relatively longer than that on the C₁₈-MS-II or C₁₈-AR-II. This column is also suitable for the analysis of a wide range of chemical compounds including polypeptides.

Silica gel

high purity porous spherical silica

Average particle size

5 µm

Average Pore size

approx. 120 Å

Specific surface area

approx. 300m²/g

Stationary phase

octadecyl group

Carbon content

approx. 8.5%