Can saliva in PAXgene Saliva Collector tubes be stored frozen at –20 or –80°C?
Yes. Saliva collected into PAXgene Saliva Collector can be stored frozen. For latest results on storage at ambient or frozen temperature, see the technical notes at the resource section of www.QIAGEN.com and www.PreAnalytiX.com.
For storage at –20 or –80°C, it is recommended to transfer the sample into a suitable cryovial.