Description_x000D_ Specificity_x000D_ This product was prepared from monospecific antiserum by immunoaffinity chromatography using antigens coupled to agarose beads followed by solid phase adsorption(s) to remove any unwanted reactivities, pepsin digestion and chromatographic separation. Assay by immunoelectrophoresis resulted in a single precipitin arc against Anti-Goat Serum, Human IgA and Human Serum. No reaction was observed against Anti-Pepsin or Anti-Goat IgG F(c). Specificity was confirmed by ELISA at less than 1% cross reactivity against other Human heavy or light chain isotypes._x000D_ Immunogen_x000D_ Human IgA alpha heavy chain_x000D_ Physical form_x000D_ Supplied in 0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2 with 10 mg/mL Bovine Serum Albumin (BSA) - Immunoglobulin and Protease free_x000D_ Reconstitution_x000D_ Reconstitute with 1.0 mL deionized water (or equivalent)._x000D_ Physical properties_x000D_ Antibody format: IgG F(ab′)2