General Description

All Chromolith® HighResolution columns are made of monolithic silica with a characteristic bimodal pore structure. Chromolith 4.6 mm columns have macropores with 1.15 µm diameter, giving a column efficiency exceeding 140,000 plates/meter. The mesopores are 15 nm (150 Å), the surface modification is octadecylsilan with full end-capping.

Chromolith® is a registered trademark of Merck KGaA, Darmstadt, Germany