Cannabinoids, Mixed-mode anion exchange adsorbent, Magnetic solid-phase extraction, UHPLC-MS/MS, Wastewater
Fentanyl drugs, solid phase extraction, UHPLC-MS/MS, Environmental water, New psychoactive substances
illicit drugs, on-site detection, hair analysis, micro-SPE, mini-MS
online SPE-HPLC-MS/MS, etomidate, etomidate derivatives, wastewater epidemiology, Method Validation