a combined extraction system for the selective and quantitative isolation of the monoamines norepinephrine , epinephrine , dopamine , serotonin ( 5-hydroxytryptamine ) and their metabolites 3-methoxy-4-hydroxyphenylethylene glycol , 3,4-dihydroxyphenylacetic acid , 5-hydroxyindoleacetic acid , homovanillic acid and 3-methoxytyramine from one single brain tissue sample is described .
C0028351
norepinephrine
C0014563
epinephrine