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In the present work, LC- Q ExactiveOrbitrap high resolution MS techique in both full-scan MS and targeted MS/MS modes was applied to identify psychoactive substances in human urine samples. Methylenedioxy-pyrovalerone (MDPV), methylenedioxy-alpha-pyrrolidino-butyrophenone(MDPBP) and the main metabolites of both compounds were identified. The preliminary full-scan  screening was folowed by targeted ion fragmentation (t-MS2) enabling confirmatory analysis and mass spectral characterization. The presented case is the first confirmation of MDPBP abuse in Romania supported by the toxicological identification of the parent compound and the main metabolites in human urine.

revista de chimie

LC-High-resolution MS Analysis of the Designer Drugs Methylenedioxy-Pyrovalerone (MDPV) and Methylenedioxy-alpha- pyrolidinobutyrophenone (MDPBP) and Their Main Metabolites in Human Urine