摘要
目的:建立1种用HPLC同时测定蒙古黄芪中4个黄酮和2个皂苷含量的方法。方法:采用Inertsil ODS—SP(250mm×4.6mm,5μm)色谱柱,以乙腈(A)-水(B)为流动相,梯度洗脱(0~9min,25%A-45%A;9~20min,45%A-75%A).黄芪甲苷(S1)、3’-羟基-4-甲氧基异黄酮-7—O-β-D-葡萄糖苷(S2)和黄芪皂苷Ⅱ(S3)的检测波长为205nm(检测时间段0—9min),4-甲氧基异黄酮-7—O-β-D-葡萄糖苷(S4)、9,10-二甲基紫檀烷-3—O-β-D-葡萄糖苷(s5)和7-羟基-3’,4’-二甲基-异黄烷醌(s6)的检测波长为245nm(检测时间段9~20min);柱温为40℃。结果:在选定的实验操作条件下,S1、S2、S3、S4、S5和S6对照液分别在20.00~100.00μg·mL^-1(r=0.9992)、1.00~10.00μg·mL^-1(r=0.9997)、20.00-100.00μg·mL^-1(r=0.9991)、1.00~10.00μg·mL^-1(r=0.9999)、10.00~60.00μg·mL^-1(r=0.9995)和1.00—10.00μg·mL^-1(r=0.9997)浓度范围内具有良好的线性关系,平均回收率分别为96.5%(RSD=2.0%),98.4%(RSD=1.4%),95.5%(RSD=2.1%),98.5%0(RSD=1.1%),98.8%(RSD=1.3%),98.7%(RSD:1.1%)。结论:采用HPLC在多波长检测条件下可同时测定4个黄N(2个异黄酮、2个黄烷醇)和2个皂苷的含量,方法简便快速,可为评价该药材质量提供依据。
Objective:To develop an HPLC method for the simultaneous determination of four flavonoids and two saponins. Methods :The gradient elution was performed for the sample separation by using Inertsil ODS -SP columns(250mm×4.6mm,5μm)with acetonitrile(A) -water(B) as the mobile phase. The separation was achieved using the following gradient : 0 - 9 min, 25 % A→45 % A ; 9 - 20 min, 45 % A→75 % A, and the column temperature was controlled at 40℃. Astragaloside (S1 ), 3' - hydroxy - 4 - methoxy isoflavone -7-O-β-D- glucosid ( S2 ) and astragaloside Ⅱ ( S3 ) were detected during 0 - 9 rain with a detection wavelength at 205 nm ;4 - methoxy isofla- vone -7-O-β-D- glucosid (S4) ,9,10 - two methyl pterocarpan - 3 - O-β-D- - glucosid ( S5 ) and 7 - hy- droxy- 3',4' -two methyl isoflavan quinine (S6)were detected during 9 -20 min with a detection wavelength at 245 nm. Results:The linear ranges of S1 ,S2,S3,S4,S5 and S6 were 20.00 - 100.00 ·g · mL^-1 (r =0. 9992) , 1.00-10.00μg· mL^-1( r = 0. 9997 ) , 20. 00 -100. 00 μg· mL^-1(r=0.9991),1.00-10.00 μg· mL^-1(r= 0. 9999 ), 10. 00 - 60. 00 μg · mL^ -1 ( r = 0. 9995 ) and 1.00 - 10.00 μg ·g mL^ -1 ( r = 0. 9997 ), respectively. The av- erage recoveries of S1,S2,S3,S4,S5 and S6 were 96.5% (RSD =2.0%),98.4% (RSD = 1.4%),95.5% (RSD =2. 1%) ,98.5% (RSD = 1.1%) ,98.8% (RSD = 1.3%), and 98.71% (RSD = 1.1%), respectively. Conclusion : The content of four flavonoids ( two isoflavones and two flavanols) and two saponins can be simultaneous- ly determined by reversed phase high performance liquid chromatography under the multi wavelength conditions. The established method is simple and rapid,which can provide the basis for the quality control of this medicinal material.
出处
《药物分析杂志》
CAS
CSCD
北大核心
2014年第4期659-663,共5页
Chinese Journal of Pharmaceutical Analysis
基金
蒙药黄芪质量标准
提取物研究(十二五国家科技支撑计划项目)
项目编号:2011BAO7B01