This invention provides a sample
pretreatment method and identification method for identifying
ginseng polysaccharides in compound
fluorouracil oral solution, belonging to the field of pharmaceutical detection and analysis technology. The sample
pretreatment method of this invention includes: centrifuging the compound
fluorouracil oral solution and taking the clear solution; adding
silica gel to the clear solution, mixing, and removing the
solvent to obtain a
solid mixture; adding
ethanol solution or
anhydrous ethanol to the obtained
solid mixture, heating and refluxing, discarding the
ethanol solution, and obtaining the residue; adding water to the obtained residue, sequentially extracting and centrifuging, taking the supernatant obtained by
centrifugation, removing the
solvent from the supernatant, and then redissolving it with water; the identification method of this invention is thin-layer
chromatography analysis, and the developing
solvent includes the following components in parts by volume: 6.8-9.2 parts of n-
propanol, 1.76-2.24 parts of water, 0.75-1.24 parts of
ethyl acetate, and 0.75-1.24 parts of glacial
acetic acid. The sample
pretreatment method and identification method for identifying
ginseng polysaccharides in compound
fluorouracil oral solution of this invention have high specificity.