特異性：HIV-1 gp120 gp120 (predominate gp120 band in Western blot). Does not cross-react with human T or B cells. Not reactive with human or bovine sera.
純度：IgG fraction covalently coupled to a highly purified preparation of horseradish peroxidase (RZ>3). Care is taken to ensure adequate conjugation while preserving maximum enzyme activity. Free enzyme is absent. Estimated molar HRP: IgG substitution is 2-3.
