HPLC测定河套大黄中的土大黄苷含量  

Study on determination of rhaponticin in Rheum hotaoense C.Y.Cheng et C.T.Kao by HPLC

作　　者：陈志强[1,2] 李贞景[1] 傅志良[1] 王昌禄[1] 

机构地区：[1]天津科技大学食品工程与生物技术学院,天津300457 [2]天津市尖峰天然产物研究开发有限公司,天津300457

出　　处：《分析试验室》2009年第1期101-103,共3页Chinese Journal of Analysis Laboratory

基　　金：天津科技大学引进人才科研启动基金(20060439)项目资助

摘　　要：从河套大黄中分离纯化出活性成分土大黄苷,作为自制的标准品,利用Kromasil^(TM) C_(18)(250 mm×4.6 mm i.d.,5μm)反相色谱柱,以V(甲醇):V(乙腈):V(水)=35:5:60为流动相,以320 nm为检测波长,对河套大黄中土大黄苷进行测定。土大黄苷在0.427～4.190μg范围内与峰面积呈良好线性关系(r=0.9994),平均回收率为99.12%。该方法为河套大黄的质量控制奠定了基础。Rhaponticin which is the effective constituent of Rheum hotaoense C. Y. Cheng et C. T. Kao was isolated and identified. The rhaponticin standard samples were made by ourselves. A high performance liquid chromatographic method has been developed for the determination of rhaponticin in Rheum hotaoense C. Y. Cheng et C. T. Kao. The isocratic elution of methanol-acetonitrile-water （35：5：60） was used as the mobile phase. The UV detection wavelength was set at 260 nm. The calibration curve was linear in the range from 0.427 to 4. 190μg, with a correlation coefficient （r） of 0.9994. The average recovery was 99.12%. The results showed that the method is simple, stable and reliable. It is suitable for controlling the quality of Rheum hotaoense C. Y. Cheng et C. T. Kao.

关 键 词：河套大黄 土大黄苷 高效液相色谱 

分 类 号：O657.7[理学—分析化学]