目的:建立测定暴马子皮药材中2个成分(紫丁香苷、sinapylaldehyde 4-O-β-D-glucopyranoside)的高效液相色谱分析方法。方法:采用Phenomenex Luna C18(4.6 mm×250 mm,5μm)色谱柱,流动相为甲醇(B)-0.1%醋酸水溶液(A),梯度洗脱,流速1.0 mL·min-1,DAD检测器,检测波长:284 nm;柱温25℃。结果:紫丁香苷、sinapylaldehyde 4-O-β-D-gluco-pyranoside的线性范围分别为0.2~0.8μg(r=0.9995)和0.04~0.16μg(r=0.9993),平均加样回收率(n=6)分别为99.9%(RSD=2.1%)和99.5%(RSD=2.9%)。结论:不同产地暴马子皮药材中所含紫丁香苷、sinapylaldehyde 4-O-β-D-gluco-pyranoside的含量存在显著性差异。本方法操作简便,结果准确,重复性好,可用于中药暴马子皮药材的质量控制。
Objective:To develop an HPLC method for the determination of syringin and sinapyl aldehyde 4-O-β-D-glucopyranoside in Syringae Cortex.Methods:The separation was performed on a Phenomenex Luna C18(4.6 mm×25 0 mm,5 μm) column.The mobile phase was composed of methanol and water solvent containing 0.1% acetic acid with gradient elution.The flow rate was 1.0 mL·min-1 and the detection wavelength was 284 nm.The column temperature was set at 25 ℃.Results:The calibration curves were linear in the ranges of 0.2-0.8 μg for syringin(r=0.9995) and 0.04-0.16 μg for sinapyl aldehyde 4-O-β-D-glucopyranoside(r=0.9993).The average recoveries(n=6) of syringin and sinapyl aldehyde 4-O-β-D-glucopyranoside were 99.9%(RSD=2.1%) and 99.5%(RSD=2.9%),respectively.Conclusion:The yields of the two components in different origins exhibit significant differences.This method is simple,accurate and repeatable,which can be used for the quality control of Syringae Cortex.