Determination of the antioxidant capacity in blood.

Background: A vast amount of scientific research is directed towards the beneficial effects of antioxidants on health. For this reason, several assays have been developed to determine the total antioxidant capacity of blood.

Methods: In this study two procedures based on the use of the green-blue 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) radical (ABTS(*+)) were compared.