Direct analysis of psychoactive tryptamine and harmala alkaloids in the Amazonian botanical medicine ayahuasca by liquid chromatography-electrospray ionization-tandem mass spectrometry.
Journal of chromatography. A – December 18, 2009
Source: PubMed
Summary
A new analytical method significantly streamlines the study of ayahuasca. Researchers developed a direct injection technique using advanced mass spectrometry to precisely measure 11 psychoactive compounds. This approach is remarkably efficient, requiring only simple dilution without complex extractions. It accurately identifies and quantifies compounds even in highly diluted samples, offering high specificity and eliminating interference. This robust tool provides rapid, reliable chemical analysis for clinical, ethnobotanical, and forensic research.
Abstract
A direct injection/liquid chromatography-electrospray ionization-tandem mass spectrometry procedure has been developed for the simultaneous quantitation of 11 compounds potentially found in the increasingly popular Amazonian botanical medicine and religious sacrament ayahuasca. The method utilizes a deuterated internal standard for quantitation and affords rapid detection of the alkaloids by a simple dilution assay, requiring no extraction procedures. Further, the method demonstrates a high degree of specificity for the compounds in question, as well as low limits of detection and quantitation despite using samples for analysis that had been diluted up to 200:1. This approach also appears to eliminate potential matrix effects. Method bias for each compound, examined over a range of concentrations, was also determined as was inter- and intra-assay variation. Its application to the analysis of three different ayahuasca preparations is also described. This method should prove useful in the study of ayahuasca in clinical and ethnobotanical research as well as in forensic examinations of ayahuasca preparations.