Mass Spectrometry Test for Sports Doping
Researchers at the University of Utah's (Salt Lake City) Sports Medicine Research and Testing Laboratory developed a test for testosterone and epitestosterone in urine that uses liquid chromatography with tandem mass spectrometry detection (LC-MS-MS).
Researchers at the University of Utah's (Salt Lake City) Sports Medicine Research and Testing Laboratory developed a test for testosterone and epitestosterone in urine that uses liquid chromatography with tandem mass spectrometry detection (LC-MS-MS). The test is designed to detect whether an athlete has used testosterone-boosting drugs. The analysis compares the ratio of testosterone to epitestosterone, which normally are present in approximately equal amounts. The new test provides 1-ng/mL sensitivity and enables analysts to determine the ratio with greater confidence.
Predicting Retention Indices in LC–HRMS to Improve Water Quality Analysis
February 21st 2025Ardiana Kajtazi discusses her research identifying organic micropollutants in water using liquid chromatography–high-resolution mass spectrometry (LC–HRMS). She highlights the standardized filtration approach her team has developed based on intersection principles, utilizing retention indices from two reversed-phase liquid chromatography (RPLC) columns.
