特異性：Specific for alpha2AP as determined by immunodiffusion. Only one band was observed with normal plasma and no reaction with alpha2AP-deficient plasma.
純度：Purified by caprylic acid and ammonium sulfate precipitations, and solid -phase adsorption to remove unwanted crossreactivity.
形状：Supplied as a liquid in 10mM HEPES, pH 7.4, 150mM sodium chloride and 50% glycerol.
