HPLC同时测定红花药材中4种化学成分含量

摘要

Objective To establish an HPLC method for the simultaneous determination of hydroxysafflor yellow A, rutin, quercetin, and kaempferol in Carthamus tinctorius L..Methods The Agilent ZORBAX SB-C18 column (4.6 mm × 250 mm, 5 μm) was used with diode array detection. The mobile phase was 0.5% phosphoric acid (A) and methanol (B) to separate the four components by gradient elution at 30℃; the flow rate was 0.8 mL/min; the injection volumn was 10 μL; the detection wavelength was at 360 nm.Results The linear ranges of hydroxysafflor yellow A, rutin, quercetin, and kaempferol were 0.0776–0.7760 μg (r=0.9999), 0.0460–0.4600 μg (r=0.9996), 0.0064–0.0640 μg (r=0.9999) and 0.0128–0.1280 μg (r=0.9997), respectively. The average recoveries of four components were 99.68% with RSD=2.29% (n=6), 99.78% with RSD=1.52% (n=6), 102.03% with RSD=1.02% (n=6), 97.03% with RSD=2.05% (n=6), respectively.Conclusion The method is convenient, accurate, sensitive, stable and repeatable, which can be a method for quality control of Carthamus tinctorius L..%目的 建立HPLC同时测定红花药材中羟基红花黄色素A、芦丁、槲皮素、山柰素4种化学成分含量的方法.方法采用Agilent ZORBAX SB-C18色谱柱(4.6 mm×250 mm,5μm),DAD检测器,以0.5%磷酸溶液(A)-甲醇(B)进行梯度洗脱,柱温为30℃,流速为0.8 mL/min,进样量为10μL,检测波长为360 nm.结果羟基红花黄色素A在0.0776~0.7760μg(r=0.9999)、芦丁在0.0460~0.4600μg(r=0.9996)、槲皮素在0.0064~0.0640μg(r=0.9999)、山柰素在0.0128~0.1280μg(r=0.9997)范围内呈良好线性关系.羟基红花黄色素A、芦丁、槲皮素、山柰素的平均回收率分别为99.68%、99.78%、102.03%、97.03%,RSD(n=6)分别为2.29%、1.52%、1.02%、2.05%.结论该法简便、准确,灵敏度高,稳定性和重复性好,可用于红花药材的质量控制.