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Cláudia P.B. Martins

2 papers in the library · 21 citations · publishing 2007-2009

Papers

Characterisation of a proposed internet synthesis of N,N-dimethyltryptamine using liquid chromatography/electrospray ionisation tandem mass spectrometry.

Journal of chromatography. A August 14, 2009 Cláudia P.B. Martins, Sally Freeman, John F. Alder et al. 11 citations

A purported two-step internet recipe for making the psychoactive compound DMT was tested and found to produce almost none. The second step, methylation of tryptamine, was analyzed with advanced mass spectrometry. Instead of DMT, the reaction yielded 47.4% 1-N-methyl-TMT, 21.0% TMT, 11.1% unreacted tryptamine, and a 0.5% trace of N-methyltryptamine. The work demonstrates that synthetic methods circulated online can be unreliable and produce largely unintended, non-psychoactive products.

N,N-Dimethyltryptamine and dichloromethane: Rearrangement of quaternary ammonium salt product during GC–EI and CI-MS–MS analysis

Journal of Pharmaceutical and Biomedical Analysis December 28, 2007 Simon D. Brandt, Cláudia P.B. Martins, Sally Freeman et al. 10 citations

DMT, a simple tryptamine with powerful psychoactive properties, reacts with dichloromethane during work-up or long-term storage, forming the quaternary ammonium salt N-chloromethyl-DMT chloride. Analysis of this side-product by gas chromatography ion trap mass spectrometry (GC-MS) yielded only degradation products, such as 3-(2-chloroethyl)indole and 2-methyltetrahydro-beta-carboline, while HPLC detected the original salt. Because GC-MS is standard for drug fingerprinting, the presence of these degradation products could lead to erroneous conclusions about the synthetic route of a DMT sample.