中药Youjing Granules (YG)的化学成分及血液吸收研究。采用UHPLC-Q-orbitrap-MS技术鉴定出132种化学成分，包括黄酮类（29种）、prenol脂类（25种）、有机氧化合物（18种）等。实验显示24种成分进入血液，含15种原型成分（如loganic acid、geniposidic acid）和9种代谢物（如 ...

Thermo Scientific Orbitrap Astral mass spectrometer combines high resolution and speed to accelerate the discovery of new proteins and advance precision medicine WALTHAM, Mass.--(BUSINESS ...

代谢组学分析鉴定了非洲植物Hymenocardia acida不同部位32种次生代谢物（黄酮类、脂肪酸、香豆素等），叶提取物抗菌活性最强（MIC 0.0078-0.125 mg/mL），茎皮和根提取物抗氧化活性显著（IC50 3.03-27.23 μg/mL），仅叶提取物显示细胞毒性（IC50 250-500 μg/mL）。 本文系统 ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Last summer got off to a hot start at the June 2005 American Society for Mass Spectrometry meeting in San Antonio, Texas. With new product releases ranging from labeling reagents for quantitative ...