Chemical profile of synthetic drugs seized in Paraná State (Brazil): Possible decline of new psychoactive substances.
Forensic Science International 2026 Isabella Ferreira Melo, Leociley Rocha Alencar Menezes, Philippe Rodrigues Benedetti et al.
In recent decades, there has been a significant increase in the diversification and global commercialization of new psychoactive substances (NPS). This study assessed changes in the chemical profile of blotter papers and ecstasy tablets seized in the state of Paraná, Brazil, between 2014 and 2024. A total of 4911 samples (1656 blotter papers and 3255 tablets) were analyzed using GC-MS NMR, and...