The nicotine concentration in the e-liquid of an electronic nicotine delivery system has proved to be a poor predictor of…

Metabolism of HHC was elucidated in human hepatocytes and urine samples. Metabolites were extensively glucuronidated in non-hydrolysed urine samples. 11-OH-HHC…

The pharmacokinetic properties of villocarine A have been determined in a series of in vitro and in vivo studies. Villocarine…

Today, CO rebreathing is used almost exclusively to determine hemoglobin mass and blood volume. A limiting factor is the presence…

Drug Testing and Analysis, Volume 17, Issue 3, Page 420-426, March 2025.

N-Pyrrolidino protonitazene was found in samples sold as heroin in Dublin and Cork, Ireland, in late 2023. These were associated…

Twenty individuals donated venous and capillary serum weekly for 5-6 weeks. Agreement between capillary and venous serum for T, T/A4,…

This graphical abstract illustrates every step of the laboratory work in this manuscript. Sample collection, segmentation, and alkaline digestion of…

This study investigated how common cosmetic treatments (bleach, henna, gel, and dry shampoo) impact cocaine and benzoylecgonine (BE) concentrations in…