Free haemoglobin (f-Hb) refers to the hemoglobin tetramer (α2β2) that is released from erythrocytes into plasma under hemolytic conditions. Unlike intracellular hemoglobin which transports oxygen, the cell-free form has reduced oxygen affinity and exerts toxicity due to oxidative side reactions.

ELISA kit information:

• Reactivity: Human
• Sample Type: Plasma, Tissue Homogenates, Serum, Biological Fluids
• Sensitivity: 0.188 ng/ml
• Target: F-Hb, Free Haemoglobin, Free Hb