For decades, blood testing has been an integral part of routine doping controls. The breadth
of information contained in blood samples has become considerably more accessible for …

Analytical chemistry‐based research in sports drug testing has been a dynamic endeavor for
several decades, with technology‐driven innovations continuously contributing to significant …

The quantification of a large panel of endogenous steroids in serum by LC–MS/MS
represents a powerful clinical tool for the screening or diagnosis of diverse endocrine …

We present a quick and simple multi-targeted analytical workflow based on ultra-high-
performance liquid chromatography coupled to high-resolution mass spectrometry for the …

A series of dried blood spot (DBS) detection methods for doping agents have been
developed in the last two decades. The DBS technique minimizes invasiveness and reduces …

The rules of fair play in sport generally prohibit the use of performance‐enhancing drugs
(PEDs). The World Anti‐Doping Agency (WADA) oversees global antidoping regulations …

Background: Volumetric absorptive microsampling (VAMS) is an emerging technique that
may support multisample collection to enhance therapeutic drug monitoring in solid organ …

In the context of steroid analyses, the use of blood could represent a valuable complement
to urine. While the blood steroid profile is currently being established to aid unveiling …

Purpose: To assess the prevalence of tramadol use among athletes from 2012 to 2020.
Methods: All urine samples were collected from national and international in-competition …

In competitive sport, classic methods of measuring drug prevalence, such as doping controls
or questionnaires, are challenging. Here we describe a novel urine sampling method to …