Thermo Scientific™ Hypersil BDS 3µm C18 Columns are a good choice for QA/QC labs as a robust, general-purpose column in applications where reproducibility and long column lifetimes are required. Built on the renowned Hypersil silica backbone, Thermo Scientific Hypersil BDS (Base Deactivated Silica) is an excellent reversed phase material for a wide range of applications and is one of the most popular packing materials available.