Equitech-Bio's purified
immunoglobulin (Ig) preparations are isolated from pooled
normal serum by a proprietary chemical fractionation method. The immunoglobulin
preparations are supplied as a lyophilized powder. Purity levels are >97%
IgG as analyzed by SDS-Page. These preparations are especially useful as a co-precipitant
in RIA methods employing polyethylene glycol or ammonium sulfate precipitation steps,
or as a protein stabilizer or blocker in a number of immunoassays. These preparations
are also useful as IgG control solutions for biochemical analytical tests. Immunoglobulin
preparations reconstitute to pH 7.2 ± 0.2.