Chromolith SpeedROD RP-18 Endcapped HPLC Column, 130 A, 2 um, 4.6 x 50 mm - 151450

Merck Chromolith® SpeedROD RP-18 Endcapped HPLC Column, 2 µm, 130 Å, 4.6 mm I.D. x 50 mm Length

Product Number: 151450

Analytics and Sample Preparation > Analytical Chromatography > Analytical HPLC > Columns for USP Specifications > L1 Octadecylsilane, Chemically Linked to Porous Silica or Ceramic Micro Particles > Chromolith® RP-18 Endcapped > Chromolith® SpeedRODRP-18 endcapped50-4.6 HPLC column

All Chromolith® columns are made of monolithic silica with a characteristic bimodal pore structure. Chromolith® 4.6mm columns have macropores with 2 µm diameter, giving a column efficiency exceeding 80,000 plates/meter. The mesopores are 13 nm (130 Å), the surface modification is octadecylsilan with full end-capping.

In contrast to conventional particle-packed columns, Merck’s Chromolith® HPLC columns are based on state-of-the-art monolithic silica technology. Produced from a continuous piece of porous silica using a sol-gel process, Chromolith® rod columns possess a defined bimodal pore structure with macro- and mesopores in the micro- and nanometer range. The high permeability and porosity of the silica skeleton and the resulting low back pressure allow for more flexible flow rates compared to particulate columns. As a result, Chromolith® HPLC columns enable high-throughput analysis without loss of separation efficiency or peak capacity.