Objective:
To obtain the optimal process for separation and purification the Nitidine Chloride by cationic resins, and to obtain the Chemical Reference Substance by refining the crude product with column chromatography and crystallization
Method:
The content of total alkaloids from Zanthoxylum nitidum was determined by UV spectrophotometry, and the content of the Nitidine Chloride was determined by HPLC. Identified the structure of the product by IR,1H-NMR,13C-NMR and MS spectra an...