Two main constituents were purified from the precipitate by RP?HPLC. Compared with the UV?, LC?ESI?MS, HPLC and FTIR spectra of standard samples of arctiin and arctigenin, the two main purified constituents were identified as arctiin and arctigenin. ?
英
美
- 經(jīng)紫外光譜(UV)、紅外光譜(FTIR)及電噴霧質(zhì)譜(ESI MS)檢測,并與牛蒡子甙和牛蒡子甙元對照品的UV,LC ESI MS,HPLC及FTIR圖譜比較,鑒定兩個(gè)主要成分為牛蒡子甙和牛蒡子甙元。
