Sterilization of blood component separation devices

摘要

A method of sterilization is provided and a sterilized product from the method for blood separation tubes utilizing a density gradient medium comprised of ficoll and sodium diatrizoate alone or in combination with other such mediums by exposing such mediums to radiation sterilization from such sources as Cobalt 60 without any precipitation out of the components of the medium. This is achieved by the addition of a buffer to the gradient medium at a rate which will provide a specific pH level for the medium after exposure.