β‐Hydroxy β‐Methyl Butyric Acid (HMB) and Its Potential Doping Relevance: A Pilot Study on Its Urinary Excretion Profile
β-hydroxy β-methyl butyric acid (HMB), either as the free acid or in the form of its calcium salt, is a…
The MAIIA EPO Purification Gel Kit, 7D3—An Alternative Purification Kit for Screening and Confirmation Procedures
The new MAIIA EPO Purification Gel Kit 7D3 was validated for urine and compared to the MAIIA EPO Purification Gel…
Associations Between Self‐Reported Cocaine Use Patterns and Cocaine and Its Metabolites in Hair: Implications for Clinical and Forensic Practices
This study demonstrates that concentrations of cocaine and its main metabolites in hair reliably predict an individual’s actual intensity of…
A Survey of Melatonin in Dietary Supplement Products Sold in the United States
An LC-MS/MS method was validated to measure melatonin and two degradation products in dietary supplements in a broad range of…
Metabolic Characterization of Vamorolone in Human Liver Microsomes: Implications for Anti‐Doping
Vamorolone, a next-gen glucocorticoid, was studied for its metabolic profile in vitro using HLMs and LC-HRMS, revealing key metabolites that inform…
Rapid and Effective Determination of Ethyl Glucuronide in Hair by Micro Extraction by Packed Sorbent (MEPS) and LC‐MS/MS
The development and validation of a MEPS method for the purification of hair extract for the EtG determination and quantification…
A Novel High‐Throughput Immunoaffinity LC–MS/MS Assay for P‐III‐NP and Other Fragments of Type III Procollagen in Human Serum
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…
Comparison of Microcapillary Blood Sampling Devices for Use in Anti‐Doping
Advances in capillary whole blood collection technology now afford the ability to collect microvolumetric capillary whole blood that is “needle-free”…
Waxy‐ or Putty‐Like Materials as a Novel Drug Preparation for Synthetic Cannabinoid Receptor Agonists: Detection in Prisons and In Vitro Cannabinoid Receptor Activity
Waxy- or putty-like materials has emerged as a novel drug preparation for synthetic cannabinoids and other drugs in UK prisons.…
Lipid and Corticosteroid Biomarkers Under the Influence of Bisphosphonates
The detection of bisphosphonates is important due to the potential integrity and welfare issues associated with use of these substances.…