Coral Olsen

We provide a long term frozen storage facility in South Africa for rare blood donations to be used for transfusion purposes. These donations are currently stored using a high glycerol solution and stored at -80 degrees C. We have been having difficulty with the supply of the glycerol solution required for this procedure. My aim is to find out what methods other institutions are using for this facility and where they obtain their supplies from. Any input would be greatly appreciated.