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目的:探讨葛根-麻黄药对不同比例配伍对葛根素溶出量的影响。方法:采用HPLC测定葛根素含量,流动相甲醇-水(25∶75),检测波长250 nm,建立葛根-麻黄药对中葛根素的含量测定方法。考察葛根-麻黄药对不同比例(3∶1,2∶1,4∶3,1∶1,1∶2,1∶3)配伍对葛根素溶出量的影响。结果:建立的含量测定方法稳定可行,平均加样回收率99.67%,RSD 2.2%。葛根-麻黄按4∶3配伍时葛根素溶出量最多(2.408 g·L-1),与葛根水煎液(2.455 g·L-1)最接近,而葛根-麻黄按2∶1配伍时溶出量最少(2.254 g·L-1)。结论:不同配伍比例的麻黄对葛根中葛根素的溶出量具有一定影响。
Objective: To investigate the effect of Pueraria - ephedra on the dissolution of Puerarin in different proportions. Methods: The content of puerarin was determined by HPLC. The mobile phase was methanol - water (25:75) and the detection wavelength was 250 nm. Effects of Pueraria - ephedra on dissolution of Puerarin in different proportions (3: 1, 2: 1, 4: 3, 1: 1, 1: 2, 1: 3) Results: The determination method was stable and feasible. The average recovery was 99.67% and RSD was 2.2%. Pueraria - ephedra when the compatibility of 4: 3 puerarin dissolution (2.408 g · L -1), and Pueraria decoction (2.455 g · L -1) the closest, while the Pueraria - Ephedra dissolved at 2: 1 when the compatibility The least amount (2.254 g · L-1). Conclusion: Ephedra with different compatibility ratio has certain influence on the dissolution of Puerarin in puerariae.