[Micro-determination of hemoglobin by measuring the peroxidase activity].

A simple and rapid method is described for the determination of serum hemoglobin. Free hemoglobin shows no peroxidase activity but human hemoglobin-human haptoglobin complex presents a peroxidase activity which permits hemoglobin determination. It is shown that a good source of haptoglobin is constituted by pools of non-hemolyzed human serums.