In our last episode of the season, we look at 5 recent publications in the field of toxicology.Steuer, A. et al. Identification of new urinary gamma-hydroxybutyric acid markers applying untargeted metabolomics analysis following placebo-controlled administration to humans. (2019) Drug Testing and Analysis. 11 (6):813-823Souza, R. et al. Validation of an analytical method for the determination of the main ayahuasca active compounds and application to real ayahuasca samples from Brazil. (2019) Journal of Chromatography B. 1124: 197-203 Snamina, M. et al. Postmortem analysis of human bone marrow aspirate - Quantitative determination of SSRI and SNRI drugs. (2019) Talanta. 204:607-612Fabresse, N. et al. Development of a sensitive untargeted liquid chromatography-high resolution mass spectrometry screening devoted to hair analysis through a shared MS2 spectra database: A step toward early detection of new psychoactive substances. (2019) Drug Testing and Analysis. 11 (5):697-708Sitasuwan, P. et al. Comparison of purified beta-glucuronidases in patient urine samples indicates a lack of correlation between enzyme activity and drugs of abuse metabolite hydrolysis efficiencies leading to potential false negatives.(2019) Journal of Analytical Toxicology. 43 (3):221-227Contact us at toxpod@tiaft.orgFind out more about TIAFT at www.tiaft.orgThe Toxpod is a production of The International Association of Forensic Toxicologists. The opinions expressed by the hosts are their own and do not necessarily reflect the views of TIAFT.