uniform liquid-chromatographic conditions were developed such that we could quantify norepinephrine , epinephrine , normetanephrine , metanephrine , vanillylmandelic acid , and 5-hydroxyindoleacetic acid in urine by using a single mobile phase of monochloroacetic acid and citric acid , 0.1 mol/l each .
C0028351
norepinephrine
C0028385
normetanephrine