目的:建立测定肠激安提取物中芍药苷含量的方法。方法:采用高效液相色谱法。色谱柱为Phenomenex Luna C18(250mm×4.6mm,5μm),流动相为乙腈.0.1%磷酸(15:85),检测波长为230am,流速为1.0mL·min^-1,柱温为30℃。结果:芍药苷进样量在0.0644~0.6440μg范围内与峰面积积分值呈良好线性关系(r=0.9999);平均加样回收率为100.57,RSD=2.47%(n=9)。结论:本方法简便、易行、重复性好,可作为肠激安提取物中芍药苷含量的测定方法。
OBJECTIVE: To determine the content of paeoniflorin in Changji'an extract. METHODS: HPLC method was ad- opted. The determination was performed on a Phenomenex Luna C18(250 mm~4.6 mm, 5 ~tm) column with mobile phase consisted of acetonitrile-0.1% phosphoric acid (15:85) at the flow rate of 1.0 mL-min^-1. The detection wavelength was set at 230 nm and the column temperature was 30 ℃. RESULTS: The linear range was 0.064 4-0.644 0 μg for paeoniflorin (r=0.999 9) with an average recovery of 100.57% (RSD=2.47%, n=9). CONCLUSION: The method is simple, practical and well reproducible. It can be used as a method for the content determination of Changji'an extract.