Identification and assay of urinary tryptamine: application as an index of monoamine oxidase inhibition in man

Abstract

RESULTS. A. Isolation and identification of tryptamine in urine. Samples of urine(100 to 150 ml) were made alkaline (pH above 11) by addition of small volumes of 10 N NaOH. Following this they were shaken with 2 volumes of benzene2 for 20 minutes, then …