METHOD OF SEPARATING HEMOGLOBIN A2

摘要

A method of separating hemoglobin A2 is provided which enables more precise and quicker separation of HbA2 than conventional methods. A method for separating hemoglobin A2 from a hemoglobin mixture according to a cation exchange liquid chromatography characterized that at least two types of eluents are used including an eluent (hereinafter referred to as "eluent A") for elution of faster hemoglobins than hemoglobin A0 and an eluent (hereinafter referred to as "eluent B") for elution of hemoglobin A0 and slower hemoglobins than hemoglobin A0, and that the eluent A has a pH of 4.0 - 6.0 and the eluent B is maintained at a pH of at least 0.5 higher than that of the eluent A.