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Updated: Jul 11, 2026

Integration of Miniaturized Solid Phase Extraction and LC-MS/MS Detection of 3-Nitrotyrosine in Human Urine for Clinical Applications
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解开反兴奋剂分析的复杂性:在一个案例研究中重新评估 meldonium 检测和兴奋剂判决

S Cristoni1, F Vitarelli, S Spiti

  • 1I.S.B. - Ion Source & Biotechnology SRL, Milan, Italy. simone.cristoni@ionsource.bio.

European review for medical and pharmacological sciences
|December 19, 2023
PubMed
概括

这项研究质疑梅尔多尼的积极兴奋剂判决. 分析显示,运动员和健康的志愿者都缺少一个关键的离子,这表明反兴奋剂检测的质谱法存在缺陷.

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相关概念视频

Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a result, EDTA...