Abstract: This report outlines a procedure for the quantitative analysis ofurinary norepinephrine, epinephrine and dopamine by high performanceliquid chromatography with electrochemical detection. Bio-Rex cationexchange resin was used to remove catecholamines from urine specimens.The recovery was 97±5% for norepinephrine; 97±9% for epinephrine;76±8% for dopamine(n=5). Meanwhile, a determination was made byHPLC for urinary catecholamines under different psycho-physiologicalconditions.

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