a rapid ( less than 25 min ) isocratic system for the simultaneous determination of 3,4-dihydroxyphenylalanine , dopamine , dihydroxyphenylacetic acid , 3-methoxytyramine , homovanillic acid , norepinephrine , normetanephrine , 3,4-dihydroxyphenylethylene glycol , 3-methoxy-4-hydroxyphenylethylene glycol , epinephrine , metanephrine , vanillylmandelic acid , 5-hydroxytryptophan , serotonin , 5-hydroxytryptophol and 5-hydroxyindoleacetic acid in addition to the internal standard isoproterenol is presented .
C0028351
norepinephrine
C0014563
epinephrine