ammonium sulfate suspension, ≥9 units/mg protein
for enzyme immunoassay, lyophilized, powder, ~140 U/mg
Grade III, lyophilized powder, ≥0.15 units/mg protein
lyophilized powder, ≥500 units/mg protein
ammonium sulfate suspension, 1.0-3.0 units/mg protein (modified Warburg-Christian)
aqueous glycerol suspension, ≥500 units/mg protein (biuret)
≥8.0 units/mg solid
Grade VIII, lyophilized powder, ≥500 units/mg protein