Methods, units and quality requirements for the analysis of haemoglobin A1c in diabetes mellitus

Figure 1 Fractionation of blood hemoglobin by an automated Mono S™ HR5/5 cation exchange column from Pharmacia with malonate buffer (0. 01 mol/L, pH 5.7, 11 min, room temperature) for normal and diabetic human blood samples is illustrated as a chromatogram (Penttilä et al[10]).