Synthetic opioid deaths remain high, with fentanyl the leading drug implicated in US overdose fatalities in 2022–2023, and reported lethal concentrations as low as 3.0 ng/mL. Impaired-driving ...

Gas or liquid chromatography combined with mass spectrometry is widely recognized as a versatile and powerful technique for the investigation of complex chemical mixtures. A state-of-the-art ...

Data was collected using the supplied MRM method. This method includes two transitions (qualifier and quantifier) per compound, with associated preconfigured parameters for cone voltage, as well as ...