Based on ~1H-NMR-PCA to establish a quality control method of Jie-Er-Yin Lotion / 中草药

Objective To establish a new method of quality control for Jie-Er-Yin Lotion.Methods Jie-Er-Yin Lotion and different kinds of agents(without Fructus Cnidii,Cortex Phellodendri Chinensis, Radix Sophorae Flavescentis,excipient agent or all medicinal material agents) were treated with the same approach,then using ~1H-NMR to get all of the chemical component information of the samples and analyze the data from the spectra.Results Analyzing the data with principal component analysis(PCA) by model recognition,the different agents can be distinguished in the scattered plots.Conclusion The ~1H-NMR-PCA is an useful method to identify Jie-Er-Yin Lotion from other preparations and can be used for the quality control of Chinese prepared medicines by simple operation.

Based on ~1H-NMR-PR to establish an identification method of Ophiopogonis japonicus from different habitats / 中草药

Objective To establish a new identification method of Ophiopogonis japonicus from different habitats.Methods Using 1H-NMR to get the all component information on O.japonicus,and using pattern recognitions,such as principal component analysis(PCA),partial least squares-discriiminate analysis(PLS-DA),and hierarchical cluster analysis(HCA) to analyze the data from the 1H-NMR spectra.Results The 1H-NMR-pattern recognition(PR) method could identify the samples of O.japonicus from different habitats successively.Conclusion The 1H-NMR-PR is an useful method for identification of O.japonicus from different habitats and could be used for the quality control of traditional Chinese medicinal materials.