Hypersil GOLD LC and LC/MS columns, based on highly pure silica, are available in 3 and 5 μm sizes, and in formats including standard analytical columns, KAPPA capillary columns, DASH high-throughput LC/MS columns, and PIONEER direct-connection columns, as well as in several guard formats. Analytical columns and capillaries range in dimension from 75 μm to 4.6 mm ID and lengths from 20 to 250 mm. For preparative work, Hypersil GOLD is also available in 8 μm particle size and larger column dimensions.