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Abstract
Context: In epidemiological research, it is very important to test the stability of biomarkers as function of both storage time and temperature.
Objective: In this study, the stability of biomarkers of the iron status was tested up to 1 year of storage.
Materials and methods: The biomarkers include total iron, unsaturated iron binding capacity, ferritin, transferrin, soluble transferrin receptor, ceruloplasmin and haptoglobin.
Results: The concentrations of all biomarkers tested remain constant upon storage at −20, −70 and −196 °C.
Conclusion: All biomarkers of the iron status were stable at the temperatures tested for 1 year.