1. Non-targeted acquisition strategy for screening doping compounds based on GC-EI-hybrid quadrupole-Orbitrap mass spectrometry: A focus on exogenous anabolic steroids.
- Author
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de Albuquerque Cavalcanti G, Rodrigues LM, Dos Santos L, Zheng X, Gujar A, Cole J, Padilha MC, and de Aquino Neto FR
- Subjects
- Doping in Sports, Humans, Liquid-Liquid Extraction methods, Tandem Mass Spectrometry methods, Anabolic Agents urine, Gas Chromatography-Mass Spectrometry methods, Substance Abuse Detection methods, Testosterone Congeners urine
- Abstract
This is a first look at a non-targeted screening method based on Orbitrap gas chromatography-mass spectrometry (GC-MS) technology for a large number of banned compounds in sports found in urine, including exogenous anabolic steroids, β-agonists, narcotics, stimulants, hormone modulators, and diuretics. A simple sample preparation was processed in four steps: an enzymatic hydrolysis, liquid-liquid extraction, evaporation, and trimethylsilylation. All compounds were able to meet the World Anti-Doping Agency's sensitivity criteria with mass accuracies less than 1 ppm and with sufficient points across the peak by running the Orbitrap GC-MS in full-scan mode. In addition, we discuss our initial findings of using a full-scan selected ion monitoring-tandem mass spectrometry (SIM-MS/MS) approach as a way to obtain lower detection limits and reach desirable selectivity for some exogenous anabolic steroids., (Copyright © 2017 John Wiley & Sons, Ltd.)
- Published
- 2018
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