Implementation of a miniaturized sensor system using screen-printed carbon electrodes for on-site detection of MDMA in seized drugs.
Forensic science international May 31, 2025 Paweł Stelmaszczyk, Ewa Markiel, Karolina Sekuła et al. 2 citations
A portable sensor system using screen-printed carbon electrodes and square wave voltammetry detects MDMA (ecstasy) in seized drugs. The method achieves a detection limit of 0.5 µM and a linear range of 2.5–50 µM, with high reproducibility, satisfactory precision (intra-day CV%: 2.1–7.1%; inter-day CV%: 5.4–6.3%), and excellent recovery rates (89–105%). Testing on authentic ecstasy samples gave results consistent with a reference UHPLC-DAD method. The system's manual fabrication, low cost, simplicity, and portability suggest strong potential for on-site forensic MDMA detection, even in resource-limited settings.