This paper describes the metabolic transformation of the phosphodiesterase-4 inhibitor Roflumilast in thoroughbred horses after oral intake. Additionally, it presents…

The new ionization technique, vacuum-insulated probe-heated electrospray, allows for a simple dilute-and-shoot sample preparation to be used with liquid chromatography…

β-hydroxy β-methyl butyric acid (HMB), either as the free acid or in the form of its calcium salt, is a…

The new MAIIA EPO Purification Gel Kit 7D3 was validated for urine and compared to the MAIIA EPO Purification Gel…

This study demonstrates that concentrations of cocaine and its main metabolites in hair reliably predict an individual’s actual intensity of…

An LC-MS/MS method was validated to measure melatonin and two degradation products in dietary supplements in a broad range of…

Vamorolone, a next-gen glucocorticoid, was studied for its metabolic profile in vitro using HLMs and LC-HRMS, revealing key metabolites that inform…

The development and validation of a MEPS method for the purification of hair extract for the EtG determination and quantification…

A high-throughput assay using immunoaffinity enrichment coupled to ultra-high-performance liquid chromatography–tandem mass spectrometry for P-III-NP and other fragments of type…

Advances in capillary whole blood collection technology now afford the ability to collect microvolumetric capillary whole blood that is “needle-free”…