, Volume 31, Issue 3, pp 265-270

Gas chromatographic-mass spectrometric isotope dilution determination of N,N-dimethyltryptamine concentrations in normals and psychiatric patients

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Abstract

A gas chromatographic-mass spectrometric determination of the plasma N,N-dimethyltryptamine concentration from normals and psychiatric patients revealed that within the limit of sensitivity of the assay (0.5–1.8 ng/ml of plasma), there was no difference amongst normals, patients with psychotic depression, acute and chronic schizophrenia.