The gamma globulin preparations are supplied as a liquid. Purity levels as GG are analyzed by SDS-Page or Agarose electrophoresis.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 blocker in a number of immunoassays.These preparations are also useful as GG control solutions for biochemical analytical tests.Gamma globulin preparations are provided at pH 7.2 ± 0.2. Usage:bioWORLD\'s products are supplied for LABORATORY RESEARCH USE ONLY.The product may not be used as a drug,agricultural or pesticidal product,food additive or as a household chemical.