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Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...

Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom ...

原料选择与纯化：聚(D,L-乳酸-co-乙醇酸)（PLGA）和聚乙二醇（PEG）是合成该化合物的主要原料 ... 质量控制与表征：在生产过程中，需建立严格的质量控制体系，通过高效液相色谱（HPLC）、核磁共振（NMR）等手段对产物的结构和纯度进行表征，确保产品质量 ...

Isolation and Identification of Compounds from Bioactive Extracts of Taraxacum officinale Weber ex F. H. Wigg. (Dandelion) as a Potential Source of Antibacterial Agents.

Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States Neuroscience Interdepartmental Program, University of California, Los ...

Mission Statement: Evidence-based Complementary and Alternative Medicine (eCAM) is an international, peer-reviewed journal that seeks to understand the sources and to encourage rigorous research ...

Mass spectra were recorded on a Shimadzu MS system. In all synthetic methods, appropriate reference methods were used. LC-MS and NMR data of the synthesis products and intermediate compounds are ...