摘要
目的:建立HPLC同时测定赤芝药材中灵芝酸C2、灵芝烯酸A、灵芝酸A和灵芝酸D含量的方法。方法:采用Kromasil C18色谱柱(4.6 mm×250 mm,5 μm);流动相为乙腈-0.03%磷酸水溶液采用梯度洗脱,流速1.0 mL·min-1,检测波长252 nm,柱温35 ℃。结果:灵芝酸C2、灵芝烯酸A、灵芝酸A和灵芝酸D的线性范围分别为:5.0~50.0 mg·L-1(r=0.999 9),7.2~72 mg·L-1(r=0.999 9),11.67~116.7 mg·L-1(r=0.999 9)和5.32~53.2 mg·L-1(r=0.999 8);平均回收率(n=3)分别为98.8%(RSD1.5%),99.1%(RSD1.9%),99.5%(RSD1.4%)和98.5%(RSD1.9%)。结论:该方法简便、准确,重复性好,为赤芝药材的质量控制提供了实验依据。
Objective: To determine 4 kinds of triterpenoid acids in Ganoderma lucidum, namely ganoderic acid C2, ganoderenic acid A, ganoderic acid A and ganoderic acid D quantitively. Method: The RP-HPLC method was applied and the separation was performed on a Kromasil C18 analytical column (4.6 mm×250 mm, 5 μm ). The mobile phase was acetonitrile (A)-water containing 0.03%H3PO4 (B) with gradient elution mode at the flow rate of 1.0 mL·min-1. The detection was set at 252 nm, and the column temperature was 35 ℃. Result: The linear ranges of ganoderic acid C2, ganoderenic acid A, ganoderic acid A and ganoderic acid D were 5.0-50.0 μg·mL-1 (r=0.999 9), 7.2-72 mg·L-1 (r=0.999 8), 11.67-116.7 mg·L-1 (r=0.999 9), 5.32-53.2 mg·L-1 (r=0.999 6), respectively. The average recoveries (n=9) were 98.8% (RSD 1.5%), 99.1% (RSD 1.9%), 99.5% (RSD 1.4%), 98.5% (RSD 1.9%), respectively. Conclusion: The method is simple and accurate with a good reproducibility and can be used as a quality control method for G. lucidum of different sources.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2009年第17期2220-2222,共3页
China Journal of Chinese Materia Medica
作者简介
[通信作者]毕开顺,Tel:(024)23986016,E—mail:bikaishun@yahoo.com