Keywords: استریاز کبد خوک; NO; nitric oxide; HNO; nitroxyl; AS; Angeli's salt; Hb; hemoglobin; oxyHb or [HbO2]2+; oxygenated hemoglobin; deoxyHb; deoxygenated hemoglobin; metHb or [Hb]3+; methemoglobin; PLE; pig liver esterase; Hemoglobin; Kinetics; Nitrite; Nitroxyl; Therapeutic