CSF sample requirements
Prior to transfer to Delve Tube:
CSF samples can be stored <6 hours at room temperature, ≤5 days at 2-8°C, <90 days at <-20°C. No more than 2 freeze/thaw cycles.
After transfer to Delve Tube:
Samples in the Delve Tube can be stored ambient for 1 month, up to 2 months at 2-8°C, up to 90 days at <-20°C.
Plasma sample requirements
Whole blood collected in EDTA or PPT tubes shall be spun per manufacturer’s instructions prior to transfer.
Prior to transfer to Delve Tube:
Plasma can be stored <24 hours at room temperature, or <24 hours at 2-8°C, or <21 days at -20°C, or <180 days at -70°C. No more than 2 freeze/thaw cycles
After transfer to Delve Tube:
Samples in the Delve Tube can be stored ambient for 1 month, or up to 2 months at 2-8°C, or up to 90 days at <-20°C.