A capillary electrophoresis (CE) technique for determining total iron binding capacity (TIBC) of serum has been developed. The optimum serum pretreatment involves the following major steps: at first, saturate serum transferrin with Fe+3; then, dissociate them completely after removing excess unbound Fe. Finally, complex the released iron with phenanthroline, a chromophore, to make suitable for the CE analysis. Ammonium acetate (pH = 5.0) was used as CE background electrolyte solution. In this system, a good linear correlation coefficient was maintained over the range 0.5~10 μM (r = 0.9979, n=12). Seven adult serum samples were studied and the TIBC parameters measured. In the present system, 10~30 μL serum is sufficient for determination. The study shows that the CE technique described is a powerful method for rapid, efficient, sensitive and reliable analysis and hence particularly suitable for clinical application.
CITATION STYLE
Ding, Y. S., Liu, L. L., Ma, Y. F., & Lin, B. C. (1999). Determination of total iron binding capacity of serum by capillary electrophoresis. Chromatographia, 49(1–2), 71–74. https://doi.org/10.1007/BF02467190
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