after intra-and extra-vascular equilibration of 125i-hemopexin and 131i-albumin , injection of either hematin , hemoglobin or methemoglobin ( 12.5 mg of heme/kg body wt ) resulted in the rapid removal of 60-80 % of circulating hemopexin ( t1/2 = 7.2 plus or minus 0.6 hr ) but did not affect albumin catabolism .
C0019046
hemoglobin
C0025635
methemoglobin