HPLC测定半枝莲中野黄芩苷、黄芩素、木犀草素和芹菜素的含量

发布时间：2018-11-18 08:39

【摘要】：建立半枝莲药材中野黄芩苷、黄芩素、木犀草素和芹菜素含量同时测定的HPLC方法。色谱条件为DiamonsilC18柱(250 mm×4.6 mm,5μm)色谱柱分离,检测波长为335 nm,流动相为乙腈(A)-1%冰醋酸水溶液(B)进行梯度洗脱,流速为1.0 m L/min,柱温为30℃。野黄芩苷、黄芩素、木犀草素和芹菜素浓度分别在2.0~200、0.5~50、0.5~50、0.5~50μg/m L范围内与峰面积积分值线性关系良好。在精密度实验、稳定性实验、重复性实验中,野黄芩苷、黄芩素、木犀草素和芹菜素峰面积的相对标准偏差(RSD)2.0%;野黄芩苷、黄芩素、木犀草素和芹菜素的加样回收率范围及平均值和RSD分别为97.73%~101.7%、99.72%、1.36%(n=9),97.78%~102.8%、99.53%、1.99%(n=9),97.40%~102.4%、99.39%、1.84%(n=9)和97.80%~102.0%、99.24%、1.49%(n=9)。所测12份不同产地半枝莲药材中,野黄芩苷、黄芩素、木犀草素和芹菜素的含量范围分别为2.41~7.08、0.26~0.56、0.31~0.90、0.28~0.95 mg/g。本方法具有良好的专属性和重现性,加样回收率实验符合要求,能准确、稳定地对半枝莲药材中野黄芩苷、黄芩素、木犀草素和芹菜素含量进行同时定量测定。
[Abstract]:A HPLC method for simultaneous determination of baicalin, luteolin and apigenin in Scutellaria barbata was established. The chromatographic conditions were as follows: DiamonsilC18 column (250 mm 脳 4.6 mm,5 渭 m) column, the mobile phase at 335 nm, was gradient eluted by acetonitrile (A) 1% glacial acetic acid solution (B), the flow rate was 1.0 mL / min, and the column temperature was 30 鈩，

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