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Determination of egosterol and ergot sterone in Inonotus obliquus by HPLC with dual wavelength detection
Author(s): 
Pages: 509-511,515
Year: Issue:  9
Journal: Qilu Pharmaceutical Affairs

Keyword:  高效液相色谱双波长法桦褐孔菌麦角甾醇麦角甾酮;
Abstract: 目的 建立高效液相色谱双波长法同时测定桦褐孔菌中麦角甾醇和麦角甾酮的含量.方法 采用的色谱柱为岛津Inertsil ODS-SP C18柱(4.6 mm×250 mm,5μm);流动相为甲醇;流速为1 mL·min-1;检测波长为282 nm、349 nm;柱温为30℃.结果 麦角甾醇和麦角甾酮的进样量分别在0.404~1.616μg(r=1)、19.88~139.16 ng(r=1)范围内呈良好线性关系,平均回收率分别为99.32%、99.34%,RSD分别为0.92%、1.02%.结论 所建立的方法准确可靠、重复性好,可用于桦褐孔菌中麦角甾醇、麦角甾酮化学成分的含量测定,为控制该药物的质量提供参考.
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