Goat ultra purified IgG contains Protein A purified goat IgG from normal serum, e.g. serum of non immunized animals and is excellent for use as blocking reagent in immunoassays.

other purified immunoglobulins which can be used as blocking reagents or controls of immunoassays.

Secondary antibodies

Goat IgG is provided in 10 mM sodium phosphate, 0.15 M sodium chloride, pH 7.2. 0.05 % sodium azide is added as preservative.