title: [UV-Vis spectroscopic characterization of active components from Scutellaria baicalensis georgi].
abstract: The molecular structures of three active components from scutellaria baicalensis have been studied by ultraviolet-visible spectra. The index flavonoid structures and substituted positions were deduced by analyzing the UV-Vis spectra in the methanol solution of three active components and the methanol solution with 5 diagnostic reagents, NaOMe, NaOAc, NaOAc/H3BO3, AlCl3, AlCl3/HCl respectively, which provided strong evidences for the structural characterization of the active components from natural products.
authors: Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010051, China.
authors: Yun-xia
authors: YX
authors: Li
authors: Quan-ling
authors: QL
authors: Suo
authors: Wen-zhi
authors: WZ
authors: He
authors: Chun-ping
authors: CP
authors: Li
authors: Yan-chun
authors: YC
authors: Huang
mesh_terms: D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry; D000432:Methanol / Q000737:chemistry; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D031364:Scutellaria baicalensis / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*
chemical_list: D005419:Flavonoids; D010936:Plant Extracts; D000432:Methanol