Physical State:Freeze-dried solid
Storage and Rehydration:Store freeze-dried solid at 2-8°C. Rehydrate with the indicated volume of dH2O and centrifuge if not clear. Prepare working dilution on day of use. Product is stable for about 6 weeks at 2-8°C as an undiluted liquid.Extended Storage after Rehydration:Aliquot and freeze at -70°C or below. Avoid repeated freezing and thawing. Alternatively, add an equal volume of glycerol (ACS grade or better) for a final concentration of 50%, and store at -20°C as a liquid.Expiration date:one year from date of rehydration. The expiration date may be extended if test results are acceptable for the intended use.
Purity:Based on immunoelectrophoresis at an antigen concentration of 20 mg/ml, the pattern of precipitation against goat anti-human whole serum is the same as that against goat anti-human IgG, Fc fragment specific. No precipitin line was detected against goat anti-human IgM, Fc5μfragment specific or goat anti-human IgA, a chain specific.Buffer:0.01M Sodium Phosphate, 0.25M NaCl, pH 7.6Stabilizer:15 mg/ml Bovine Serum Albumin (IgG-Free, Protease-Free)Preservative:0.05% Sodium Azide