Vinca is an important kind of medical plant belonging to dogbane species. There are more than 100 kinds of alkaloids in vinca plant, including anhydrovinblastine, vinblastine, vincristine and other anti-tumor medicine used in clinic, etc.Vinca dry grass and fresh grass as raw material, by a series of methods: acid dissolving, alkali precipitation and extraction using organic solvent, we gathered and purified vinca alkaloids in our experiments. Adding acid, alkaloids can be transformed salt and improved solu...
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