Soluble IL2 receptor

Twice a year 4 samples are distributed via mail at room temparture. Upon arrival samples must be stored at -20 to -80 °C. This quality monitoring scheme concerns the detection of soluble Interleukine 2 receptor in serum. sIL-2Ra (CD25) is secreted by activated T-cells and can be detected via ELISA (pg/ml) or IMMULITE (IU/ml)