Figure 1: Flow cytometric determination of white blood cell (WBC) contamination of platelet suspensions. Flow cytometric analysis after staining with antibodies specific for CD61 (PerCP-Cy5-5) and for CD45 (APC-Cy7). In (a), the box includes cellular suspension according to SSC and FSC. In (b) the CD61+/CD45+ events gated on P1 are shown in the right upper quadrant.