Built on the renowned Hypersil silica backbone, 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. Introduced to the chromatography market in 1988 as one of the first base deactivated silicas, Hypersil BDS columns have gained respect worldwide for their quality, reliability, range of applications, robustness, and reproducibility. Hypersil BDS   columns are the only Hypersil columns within the marketplace that come with a Certificate of Authenticity. Hypersil BDS media and columns are manufactured to the highest standards and are rigorously quality controlled under fully documented, IS0 9001:2000 certified processes. When you purchase a Thermo Scientific Hypersil BDS column you are assured of consistent and efficient performance, column after column and year after year.