[Retracted] Detection of Abnormal Hemoglobin Variants by HPLC Method: Common Problems with Suggested Solutions

Figure 1

(a) Chromatogram of beta thalassemia trait showing elevated HbA2 5.6% (RT 3.68 min) and HbF 0.4%. (b) Chromatogram showing elevated Hb F (29.1%) suggestive of HPFH.

(a)

(b)