目的建立RP-HPLC测定醋酸溴茶碱胶囊含量的方法。方法选用SB—C18色谱柱(250mm×4.6mm,5μm),流动相为0.01mol/L磷酸氢二铵缓冲液(pH7.0)-乙腈(50:50),流速为1.0mL/min.检测波长为242nm。结果醋酸溴茶碱在19.92~199.16μg/mL范围内浓度与峰面积呈良好线性关系(r=0.9999),平均回收率为99.40%,RSD为0.60%。结论测定方法简便、快速、可靠,可用于醋酸溴茶碱胶囊的质量控制。
Aim To establish a RP-HPLC method for the determination of the content of acebrophylline capsules. Methods A SB-CIs column (250 mm×4. 6 mm ,5μm) and phosphate buffer solution (pH 7. 0) -acetonitrile (50 : 50) as the mobile phase were used for the determination with the detection wavelength of 242 nm. The flow rate was 1.0 mL/min. Results A linear relationship was obtained with the range of 19.92 - 199. 16μg/mL(r =0. 999 9). The average recovery was 99.40% ( RSD = 0. 60% ). Conclusion The method is simple, sensitive, accurate and suitable for the quantitative control of acebrophylline capsules.