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Chromatograms of Meth metabolites acquired in MRM positive ion mode extracted for selected transitions; o ortho-hydroxymethamphetamine, m meta-hydroxymethamphetamine, a amphetamine, p para-hydroxymetahmphetamine, d a metabolite with the formula C11H17N (Mmi 163 Da), likely dimethylamphetamine, u a metabolite with formula C11H16N2O (Mmi 192 Da), × compound with unknown structure (also present in control samples).
