Direct analysis in real time high resolution mass spectrometry as a tool for rapid characterization of mind-altering plant materials and revelation of supplement adulteration--The case of Kanna

Forensic Science International : Synergy
Ashton D LesiakRabi A Musah

Abstract

We demonstrate the utility of direct analysis in real time ionization coupled with high resolution time-of-flight mass spectrometry (DART-HRTOFMS) in revealing the adulteration of commercially available Sceletium tortuosum, a mind-altering plant-based drug commonly known as Kanna. Accurate masses consistent with alkaloids previously isolated from S. tortuosum plant material enabled identification of the products as Kanna, and in-source collision-induced dissociation (CID) confirmed the presence of one of these alkaloids, hordenine, while simultaneously revealing the presence of an adulterant. The stimulant ephedrine, which has been banned in herbal products and supplements, was confirmed to be present in a sample through the use of in-source CID. High-throughput DART-HRTOFMS was shown to be a powerful tool to not only screen plant-based drugs of abuse for psychotropic alkaloids, but also to reveal the presence of scheduled substances and adulterants.

References

Feb 19, 2003·Phytochemistry·Brian T SchanebergIkhlas A Khan
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Sep 2, 2008·Journal of Ethnopharmacology·N Gericke, A M Viljoen
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Mar 5, 2015·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Vikas BajpaiBrijesh Kumar

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Citations

Jan 2, 2021·Forensic Science International : Synergy·Nicole S Jones, Jeffrey H Comparin
Dec 22, 2016·Journal of the American Society for Mass Spectrometry·Zachary E LawtonChristopher C Mulligan
Jan 21, 2017·Analytical Chemistry·Patricia M PeacockSarah Trimpin

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