The concentration of radioactivity from labeled epinephrine and its precursors in the dog adrenal medulla.

Twenty-six dogs were two the were 16 organs of each dog and the concentration of radioactivity expressed as counts per per milligram of The average adrenal medulla:plasma 6 20 after and then fell to 128 after norepinephrine 126 after epinephrine. ratios at 24 not be plasma the