Determination of Serum and Urine Concentrations of Tranylcypromine by Electron-Capture Gas-Liquid Chromatography

Abstract
A method is presented for the gas-liquid chromatographic determination of tranylcypromine in serum and urine at therapeutic concentrations. Both the drug and the internal standard are converted to trichloroacetyl derivatives and are assayed using electron-capture detection. Following ingestion of 30 mg of tranylcypromine sulfate, peak serum concentrations averaged 39 ng/ml in two volunteers with less than 2% of the dose excreted unchanged in the 24-hour urine.