Study on the petroleum ether eextract of Mirabilis jalapa L.root

Objective To isolate and identify the petroleum ether extract of Mirabilis jalapa L.root and lay a good foundation for developing a new drug.Methods The compounds were isolated and purified by solvent extraction and silica gel column chromatography,and thin-layer chromatography were adopted to identify the extraction.Results Three kinds of crystals including white needle,white snowflake and yellow needle were isolated from petroleum ether extract.Conclusion Combine solvent method,silica gel column chromatography with thin layer chromatography(TLC) is a very effective separation and purification methods.