Andreas H. Ewald

Designer drugs 2,5‐dimethoxy‐4‐bromo‐amphetamine (DOB) and 2,5‐dimethoxy‐4‐bromo‐methamphetamine (MDOB): studies on their metabolism and toxicological detection in rat urine using gas chromatographic/mass spectrometric techniques

Andreas H. Ewald, Giselher Fritschi, Wolf‐Rainer Bork et al. · Journal of Mass Spectrometry · 2006 · 50 citations

Drug Class, Toxicological Detection, Pharmacological Study +19

Studies on the metabolism and toxicological detection of the designer drug 4-methylthioamphetamine (4-MTA) in human urine using gas chromatography–mass spectrometry

Andreas H. Ewald, Frank T. Peters, M WEISE et al. · Journal of Chromatography B · 2005 · 45 citations

Human Urine, Gas Chromatography–mass Spectrometry, Health Sciences +13

A simple extraction and LC‐MS/MS approach for the screening and identification of over 100 analytes in eight different matrices

Deborah Montenarh, Markus Hopf, Stefan Warth et al. · Drug Testing and Analysis · 2014 · 43 citations

A fatal case involving several synthetic cannabinoids

Nadine Schaefer, Benjamin Peters, Dietmar Bregel et al. · 2013 · 43 citations

Cannabinoid Pharmacology, Forensic Medicine, Synthetic Cannabinoids +17

Pharmacokinetics of (synthetic) cannabinoids in pigs and their relevance for clinical and forensic toxicology

Nadine Schaefer, Jan‐Georg Wojtyniak, Mattias Kettner et al. · Toxicology Letters · 2016 · 42 citations

Cannabis Use, Substance Abuse, Cannabinoids +7