Human IgM PE protein conjugated to RPE; Purity: Human IgM whole molecule Phycoerythrin conjugated was prepared from normal serum delipidation, salt fractionation, ion exchange chromatography followed by extensive dialysis against the buffer stated above. Human IgM whole molecule Phycoerythrin conjugated was assayed by immunoelectrophoresis resulted in a single precipitin arc against anti-Phycoerythrin, anti-Human IgM and anti-Human Serum. No reaction was observed against anti-Human IgG F(c), 0.25 ml