Performances of an artificial reagent for the one-stage factor IX assay.
A mixture of adsorbed normal human plasma and chicken plasma was prepared as reagent for factor IX measurement using a one-stage method. The substrate was found to be specific for factor IX. Its performances tested on samples displaying factor IX activity ranging from less than 1%-2,000% compared favorably with those obtained when using the plasma of severe haemophilia B patients as substrate.
D000818:Animals; D001780:Blood Coagulation Tests; D002645:Chickens; D005164:Factor IX / Q000032:analysis* / Q000592:standards; D002836:Hemophilia B / Q000097:blood; D006801:Humans; D007202:Indicators and Reagents; D008722:Methods; D010949:Plasma
D007202:Indicators and Reagents; D005164:Factor IX