FIELD: biotechnology. SUBSTANCE: the method deals with production of specific, highly active diagnostic sera. Immunosorption of nonspecific antibodies is carried out by water-soluble heterologous antigens immobilized upon solid-phase carrier as polyglukin-modified alumosilicate with magnetic properties and activated with secondary sodium alkylsulfate. Single sorption process is carried out. The innovation simplifies sorption process at maintaining activity of immune sera. EFFECT: higher efficiency of sorption. 3 ex
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