title: Stability of a reference panel of lyophilized hepatitis B antigens and antibodies.
abstract: A lyophilized hepatitis B working/reference panel has been prepared for use in standardization tests. This panel includes HBsAg, anti-HBs, HBeAg/anti-HBe and subtype reagents. Quantitative analysis of the HBsAg reagents indicates that at a storage temperature of -20 degrees C, only 1 log at maximum of RIA counts per minute would be lost in 95 years. After storage at -20 degrees C for 1 year, there has been no loss of reactivity in any of the tests used to detect HBsAg, anti-HBs, HBeAg/anti-HBe or subtypes.
mesh_terms: D000914:Antibodies, Viral / Q000592:standards*; D005612:Freeze Drying; D006510:Hepatitis B Antibodies / Q000592:standards*; D006511:Hepatitis B Antigens / Q000592:standards*; D006801:Humans; D011863:Radioimmunoassay; D012015:Reference Standards; D013048:Specimen Handling; D013696:Temperature
chemical_list: D000914:Antibodies, Viral; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens