【摘要】 本文利用核磁共振波谱仪,通过对紫苏葶溶液不同溶剂、不同浓度和不同测试温度的选择,使顺式结构和反式结构的紫苏葶羟基峰在核磁共振一维氢谱中呈现出不同化学位移值,从而对其顺式结构和反式结构进行了定性、定量分析。更多还原

【Abstract】 By choosing different solvents, concentrations and temperatures, and using NMR spectrum technique, to determine the hydroxyl of Z/E isomers of perillartine, the concentration of which was 3.125 mg/mL, present different chemical shifts in C₆D₆ solvent and carbon tetrachloride and in the ¹H NMR, and accordingly, conduct qualitative and quantitative analysis of Z/E isomers of perillartine.更多还原