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高效液相色谱法同时测定黄芪中4种异黄酮的含量
引用本文:李小兵,谢晓梅,周铜水. 高效液相色谱法同时测定黄芪中4种异黄酮的含量[J]. 安徽医药, 2008, 12(5): 413-414
作者姓名:李小兵  谢晓梅  周铜水
作者单位:李小兵 (安徽中医学院药学院,安徽省现代中药重点实验室,安徽,合肥,230031); 谢晓梅 (安徽中医学院药学院,安徽省现代中药重点实验室,安徽,合肥,230031); 周铜水 (复旦大学生命科学学院及天然药物研究中心,上海,200433);
摘    要:目的建立反相高效液相色谱法同时测定黄芪药材中毛蕊异黄酮-7.0-β-D-葡萄糖苷(I)、芒柄花素-7.0-β-D-葡萄糖苷(Ⅱ)、毛蕊异黄酮(Ⅲ)和芒柄花素(Ⅳ)的含量。方法采用C18色谱柱(4.6mm×250mm,5μm);以乙腈-水为流动相,梯度洗脱;检测波长:254nm。结果4种异黄酮在以下浓度范围内与峰面积呈良好的线性:(I)5.16~660mg·L^-1(r=0.9998)、(Ⅱ)1.18~150mg·L^-1(r=0.9999)、(Ⅲ)2.89~370mg·L^-1(r=0.9999)、(Ⅳ)4.22~540mg·L^-1(r=0.9998);平均回收率(n=3)分别为:(I)101.4%(RSD=2.97%)、(Ⅱ)95.2%(RSD=2.17%)、(Ⅲ)105.4%(RSD=0.93%)、(Ⅳ)96.9%(RSD=3.13%)。结论该方法简便,准确,灵敏,可用于黄芪药材的质量控制。

关 键 词:黄芪  异黄酮  HPLC  含量测定

Simultaneous determination of four isoflavonoids in radix astragali by HPLC
LI Xiao-bing,XIE Xiao-mei,ZHOU Tong-shui. Simultaneous determination of four isoflavonoids in radix astragali by HPLC[J]. Anhui Medical and Pharmaceutical Journal, 2008, 12(5): 413-414
Authors:LI Xiao-bing  XIE Xiao-mei  ZHOU Tong-shui
Affiliation:LI Xiao-bing,XIE Xiao-mei,ZHOU Tong-shui(1. School of Pharmacy, Anhui College of Traditional Chinese Medicine, Anhui Key Laboratory of Modernized Chinese Material, Hefei 230031 ; 2. College of Life Sciences, Research Center of Natural Products, Fudan University, Shanghai 200433, China)
Abstract:Aim To establish a RP-HPLC method for simultaneous determination of calycosin 7-O-β-D-glucoside(Ⅰ), formononetin 7-O-β-D-glucoside(Ⅱ) , calycosin (Ⅲ) and formononetin (Ⅳ) in radix astragali. Methods These four isoflavonoids were successfully analyzed on a C18 reversed-phase chromatographic column (4.6 mm×250 mm, 5μm) by gradient elution using water and acetonitrile as the mobile phase at room temperature. Detection wavelength was set at 254 nm. Results The method showed good linearity in the ranges of ( Ⅰ ) 5.16-660 mg·L^-1(r=0.9998),(Ⅱ) 1.18-150 mg·L^-1(r=0.999 9),(Ⅲ) 2.89-370 mg·L^-1 (r =0.999 9) and (Ⅳ) 4.22-540 mg·L^-1(r=0.9998 ) for the four isoflavonoids respectively ; and the mean recovery (n=3) of the four invested compounds were (Ⅰ) 101.4% (RSD=2.97%), (Ⅱ) 95.2% ( RSD=2.17%), (Ⅲ) 105.4% (RSD=0.93%) and (Ⅳ) 96.9% (RSD=3.13%). Conclusion The developed new method is simple, precise, accurate, and reliable for quality evaluation of radix as-tragali.
Keywords:radix astragali  isoflavonoids  HPLC  content
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