Human IgA kappa IgA light chain standard Human IgA kappa is a human IgA κ isotype control purified from human myeloma serum. Applications: Enzyme-Linked-Immunosorbent-Assay (ELISA), SDS-PAGE and immunoblotting. Source: Myeloma serum Isotype: IgAκ Purification: Ion exchange chromatography Purity: >95% as judged by SDS-polyacrylamide gel electrophoresis