[Application of surface-enhanced Raman spectra to the analysis of Chinese Ephedra soup medicines].
A new method was developed to analyse the spectra of ephedrine in Chinese ephedra soup medicines, using surface-enhanced technique to combine thin layer chromatographic (TLC) technique with surface-enhanced Raman spectroscopy (SERS). The study indicates that the main vibrant characteristic spec tral band of the ephedrine molecules can be obtained by TLC in the samples of about 8 microg, and expounds char acteristics of the sample molecules and the silica gel. Therefore, it is clarified that the main chemical composi tion of Chinese medicines can be carried as finger-print type appraisal by combining TLC and SERS.
Zhang
J
J
North University of Technology, 100041 Beijing.
Wang
Y
Y
D002855:Chromatography, Thin Layer; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D029789:Ephedra / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013499:Surface Properties
D004365:Drugs, Chinese Herbal