dopamine , norepinephrine , epinephrine , and serotonin were demonstrated spectrophotofluorometrically in concentrations , expressed as micrograms amine per milligram protein , of 1.19 , 0.027 , 0.038 , and 0.148 , respectively , for cells in a stationary growth phase .
C0028351
norepinephrine
C0014563
epinephrine