the effects of ph , ionic strength , organic modifier , heptanesulphonic acid and citric acid content of a high-performance liquid chromatography mobile phase on the chromatographic and electrochemical behaviour of norepinephrine , epinephrine , dopamine , 3,4-dihydroxybenzylamine , 3,4-dihydroxyphenylethylene glycol , 3,4-dihydroxyphenylalanine and 3,4-dihydroxyphenylacetic acid in a reversed-phase system have been systematically studied .
C0028351
norepinephrine
C0014563
epinephrine