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目的:建立HPLC测定利咽清火含片中苦玄参苷ⅠA的方法。方法:采用HPLC法,色谱柱为FORTIS-C18柱(4.6 mm×250 mm,5μm),以乙腈:0.01%磷酸二氢钾溶液为流动相,采用梯度洗脱,流速为1.0 m L·min-1,柱温为30℃,检测波长为263 nm。结果:苦玄参苷ⅠA在7.50~150.0μg/m L浓度范围内有良好线性关系(r=0.9999),平均加样回收率为98.4%,RSD%为1.38%。结论:本方法灵敏度高、准确、重复性好、专属性强,可作为控制利咽清火含片质量的重要方法。
Objective: To establish a HPLC method for the determination of Bitter Scrophulariaceae ⅠA in Liyan Qinghuoban Tablet. Methods: The column was FORTIS-C18 column (4.6 mm × 250 mm, 5 μm) by HPLC. The mobile phase consisted of acetonitrile: 0.01% potassium dihydrogen phosphate solution with gradient elution at a flow rate of 1.0 mL · min- 1, the column temperature is 30 ℃, the detection wavelength is 263 nm. Results: There was a good linearity (r = 0.9999) in the range of 7.50-150.0 μg / mL with the average recovery of 98.4% and the RSD% of 1.38%. Conclusion: The method has high sensitivity, accuracy, repeatability and specificity, and can be used as an important method to control the quality of Lixue clearing fire flakes.