Flow Cytometry: Rat anti-IgM Antibody (II/41) [Allophycocyanin] [NBP1-42995] - Staining of C57Bl/6 bone marrow cells with Anti-Human/Mouse CD45R (B220) FITC and 0.125 ug of Rat IgG2a K Isotype Control APC (left) or 0.125 ug of Anti-Mouse IgM APC (right). Cells in the small scatter population were used for analysis.