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Updated: Jun 23, 2025

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在驼尿中表征洛梅里津代谢物:用于加强兴奋剂控制的高分辨率质谱法开发和验证

Jahfar Nalakath1,2, Rasik Puzhithinipra Rasik1, Ahmed Kadry1

  • 1Camel Forensic Laboratory, Central Veterinary Research Laboratory, Dubai, UAE.

Rapid communications in mass spectrometry : RCM
|June 26, 2024
PubMed
概括

这项研究在驼尿液中确定了11种洛梅里津 (LMZ) 代谢物,为兴奋剂控制提供了潜在的生物标志物. 这些发现有助于区分体育中的LMZ使用与trimetazidine (TMZ).

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High-Resolution Mass Spectrometry (HRMS)01:15

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The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For...
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