Chromolith® Performance RP-18 endcapped 100-3 HPLC column
All Chromolith® columns are made of monolithic silica with a characteristic bimodal pore structure. Chromolith 3mm columns have macropores with 2 μm diameter, giving a column efficiency exceeding 80,000 plates/meter. The mesopores are 13 nm (130 ?), the surface modification is octadecylsilan with full end-capping.