LEUKOCYTE CONCENTRATION SEPARATION DEVICE, BLOOD COLLECTION CONTAINER, AND METHOD FOR SEPARATING LEUKOCYTES

摘要

Provided is a blood collection container with which it is possible to obtain a sample in which the recovery rate of leukocytes is high and the intrusion amount of erythrocytes is low.　The blood collection container according to the present invention is a container in which a prescribed amount of blood is collected, the blood collection container comprising a blood collection container body and a blood cell separation member accommodated within the blood collection container body. The specific gravity at 25°C of the blood cell separation member is 1.075-1.093 (inclusive). The blood collection container either: comprises an erythrocyte agglomeration agent accommodated within the blood collection container body (configuration A2); or comprises an osmotic pressure adjustment agent accommodated within the blood collection container body, and is configured such that, when a water-soluble component accommodated within the blood collection container body is dissolved in a prescribed amount of blood collected in the blood collection container and an equivalent amount of physiological saline to obtain an osmotic pressure measurement solution, the osmotic pressure of the osmotic pressure measurement solution is 300-500 mOsm/L (inclusive) (configuration B2).