Objective:To develop ELISA reagent kit for detection of human antithrombin Ⅲ(ATⅢ) and to make reagent preparations for purification of ATⅢ.Methods:The immunifaction of Balb/c mice was performed by twice basic immunization and twice booster immunization with ATⅢ.The hybridoma strains were screened by indirect ELISA method.The spectificity analysis was carried out by competitive absorbency test,Western blotting test and so on.Results:15 hybridoma strains which secreted monoclonal antibodies against human AT...