Abstract
Hb A2 (α2δ2) is one of the key components looked for in hemoglobinopathies screening programs. Therefore, quantitative and accurate method for Hb A2 value determination is essential for routine screening. Here, we report a case of Hb A2 and Hb Constant Spring (Hb CS, HBA2: c.427T>C) with Hb H-Hb CS disease that was not detected by high performance liquid chromatography (HPLC), while Hb A2 and Hb CS were clearly quantified by capillary electrophoresis (CE).
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