Antibody is affinity puridied using solid phase human alfafetoprotein (AFP). Antibody concentration is > 4.5 mg/ml (E 1% at 280 nm = 14.0).Antibody is supplied in 10 mM sodium phosphate, 150 mM sodium chloride, pH 7.4. =.05 % sodium azide is added as preservative. Antibody purity is > 95% based on SDS-PAGE.