摘要
目的:建立测定绞股蓝中槲皮素、山柰素和异鼠李素含量的HPLC方法。方法:色谱柱为Hypersil ODS_2(250 mm×4.6 mm,5μm);流动相为甲醇-0.4%磷酸水溶液(50:50,V/V);流速0.78 ml·min^(-1);检测波长为360 nm;柱温为25℃。结果:槲皮素、山柰素和异鼠李素均可达基线分离,其线性范围分别为20.02~100.10μg·ml^(-1)(r=0.999 9),12.16~60.80μg·ml^(-1)(r=0.999 9),1.45~7.26μg·ml^(-1)(r=0.999 8)。平均加样回收率分别为97.32%(RSD=1.09%),97.75%(RSD=1.06%),97.29%(RSD=1.29%)。结论:该方法简单、快速、准确,可用于绞股蓝药材的质量控制。
Objective: To establish an HPLC method for determination of quereetin, kaempferol and isorhamnetin in Gynosternma pentaphyUum ( Thunb. ) Makino. Method : The Hypersil ODS2 ( 250 mm × 4. 6 mm, 5 μm) column was used ; the mobile phase was methanol- 0.4% phosphoric acid solution ( 50 : 50, V/V ) ; the flow rate was 0. 78 ml. min^-1 ; the detective wavelength was set at 360 nm;the column temperature was 25 ℃. Result: Quercetin, kaempferol and isorhamnetin were separated well. Good linearities were obtained within the range of 20. 02-100. 10 μg.ml^-1 ,12. 16-60. 80 μg.ml^-1 and 1.45-7.26 μg.ml^-1 for quercetin,kaempferol and isorh- amnetin. The average recoveries were 97. 32% (RSD = 1.09% ) ,97.75% (RSD = 1.06% ) and 97.29% (RSD = 1.29% ) ,respectively. Conclusion: The method is simple, rapid, accurate, and can be used for the quality control of Gynostemma pentaphyllum (Thunb.) Makino.
出处
《中国药师》
CAS
2010年第12期1767-1768,共2页
China Pharmacist
基金
浙江省慈溪市科技计划项目(编号:CR200710)
关键词
绞股蓝
槲皮素
山柰素
异鼠李素
高效液相色谱法
C.ynostemma pentaphyllum ( Thunb. ) Makino
Quercetin
Kaempferol
Isorhamnetin
HPLC