macroporous silica
1.Methods: The compounds wereisolated and purified by macroporous adsorption resin, silica gel column chromatography and preparative TLC chro-matography and their structures were identified on the basis of their physicochemical and spectral data.
2.Firstly, we established simple, suitable assay methods for TA and dehydrocavidine(DHC). in CSB. Then using the content of TA and DHC as indexes, we compared purified technique by macroporous adsorption resin with others, such as cation resin and silica gel. At last, we optimized conditions of the macroporous resin technique for purifying TA.
3.the second part was filtered through macroporous resin LSA-30, and the components’structure were decorated with 2,4-dinitrofluorobenzene, then seperated with colum chromatography of silica gel.
