Stability study: Long-term storage of serum; three different -80 °C storage environments

Summary

In the Biobank Department at Norwegian Institute of Public Health, plasma and serum is stored at -80 °C both in an automated storage and in chest freezers. Some of the chest freezers are opened on a regular basis while some are rarely opened. The purpose of this study is to assess the effects on several components in serum during long-term storage in these three different -80 °C storage environments.