关键词:地黄;梓醇;薄层扫描法;紫外分光光度计;红外光谱;高效液相色谱
ABSTRACT:
Determ ination of Catalpol in the Different Prepared Medical Mterbls of Rehmannia glutinosa by TLCS Abstract Objective:to deter mine catalpol contents in the different prepared medical materials of Rehmannia glutinosa. Methods:The contens were determined by TLCS with the use of dualwavelength reflection zigzag scanning Silicagel G was employed as the stationary phase,and a mixed solvent of EtOAc-MeOH-HAC-H2O (10:2:0.5:0.5) \was used as the developer.Results: The difference ofcatalpol contents in the different prepared medicals materials of Rehmannia glutinosa was obvious.Conclusion:This method
is simple,sensitive and repeatable,coherent clear, clear thinking, experimental reasonable. It is suitable for the quality control of rehm annia and its preparations. The method is simple, rapid and satisfactory.