Research & Education JFS Articles AAFS Connect Conference Proceedings Reference Series Library International Educational Outreach Program The Development and Validation of an Analytical Method for the Identification of New Psychoactive Substances (NPS) Using the Retention Index and Gas Chromatography/Mass Spectrometry (GC/MS) Presenting section: Toxicology 2019 Giudice, Gabriella H., Brasília BRAZIL; Lira Machado, Angelo H., Brasília BRAZIL; Zacca, Jorge J., Brasília BRAZIL View the paper Toxicology