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HPLC法同时测定灯台叶片中灯台树次碱、19-表灯台树次碱和瓦莱萨明碱的含量
Simultaneous determination of scholarisin,19-epischolarisine and vallesamine in Dengtaiye tablets by HPLC method
【摘要】 目的建立HPLC法测定灯台叶片中灯台树次碱(scholarisine)、19-表灯台树次碱(19-epischolarisine)和瓦莱萨明碱(vallesamine)的含量。方法采用Diamonsil-C18(2)(250 mm×4.6 mm,5μm)色谱柱,流动相:体积分数为0.3%的甲酸水溶液(A),乙腈-甲醇(体积比为:80:20)(B),梯度洗脱,流速:1.0 m L·min-1,柱温:30℃,紫外检测波长:285 nm。结果灯台树次碱、19-表灯台树次碱和瓦莱萨明碱的质量浓度分别在3.74437.44、1.11611.16、3.84038.40 mg·L-1内与峰面积呈良好的线性关系(r>0.999 0),平均加样回收率分别为98.9%(RSD=2.2%)、100.9%(RSD=2.6%)和99.9%(RSD=1.5%)(n=6)。结论该方法可用于同时测定灯台叶片中灯台树次碱、19-表灯台树次碱和瓦来萨明碱的含量。
【Abstract】 Objective To develop a HPLC method for simultaneous determination of scholarisin(DT4),19-epischolarisine(DT-2) and vallesamine(DT-4) in Dengtaiye tablets.Methods The separation was performed on a Diamonsil-C18(2) column(250 mm×4.6 mm,5μm) with a gradient mobile phase composed of acetonitrile-methanol(8:2)(A) and 0.3%formic acid(B) at the flow rate of 1.0 mL·min-1.The column temperature was 30℃ and the detection wavelength was 285 nm.Results The linear range of calibration curves for DT4,DT-2 and DT-4 was 3.744-37.44,1.116-11.16 and 3.840-38.40 mg·L-1(r >0.999 0),respectively.The average recovery of DT4,DT-2 and DT-4 was 98.9%,100.9%and 99.9%with relative standard deviations(RSDs) of 2.2%,2.6%and 1.5%(n = 6),correspondingly.Conclusions This method is selective,accurate,rapid,which can be applied for simultaneous determination of DT-1,DT-2and DT-4 in Dengtaiye tablets.
【Key words】 HPLC; scholarisine(DT-1); 19-epischolarisine(DT-2); vallesamine(DT-4); Dengtaiye tablets; content determination;
- 【文献出处】 沈阳药科大学学报 ,Journal of Shenyang Pharmaceutical University , 编辑部邮箱 ,2017年03期
- 【分类号】R284
- 【下载频次】149