Immunochemical identification of normal and variant hemoglobins after electrophoretic separation and transfer to nitrocellulose membranes.

A highly specific method for the conclusive identification of normal and variant human hemoglobins is described in this communication. The method employs the standard electrophoretic technique in combination with the immunoblot technique using monospecific antisera raised in rabbits. Various hemoglobins such as Hb, S, C, A2, and F were separated on an alkaline polyacrylamide gel or a cellulose-acetate membrane, and transferred to a nitrocellulose membrane and the individual hemoglobins were identified by the immunoblot procedure. With this method hemoglobins with similar or identical electrophoretic mobilities can be definitively identified with the use of monospecific antisera.