摘要
目的建立测定通舒口爽胶囊中大黄素、大黄酸、大黄酚和大黄素甲醚含量的HPLC方法。方法采用Diamonsil C18(200mm×4.6mm,5μm)色谱柱,以甲醇0.05%磷酸水溶液(92:8,v/v)为流动相,流速:1.0mL·min^-1,柱温:30℃,检测波长:254nm。结果大黄素在0.7~7.0μg·mL^-1呈线性关系(r=0.9999),平均回收率为99.3%;大黄酸在0.384-3.84μg·mL^-1呈线性关系(r=0.9996),平均回收率为100.7%;大黄酚在1.803~18.03μg·mL^-1呈线性关系(r=0.9997),平均回收率为100.9%;大黄素甲醚在0.504-5.04μg·mL^-1呈线性关系(r=0.9999),平均回收率为99.1%。结论本方法操作简便、可靠、重现性好、专属性好,可作为通舒口爽胶囊质量控制方法之一。
Objective To develop an HPLC method for the determination of emodin, rhein, chrysophanol and rheoehrysidin in Tongshukoushuang capsules. Methods Diamonsil C18 (200 mm ×4. 6 mm, 5 μm) column was used with the mobile phase of methanol-0. 05% phosphoric acid solution (92 : 8, v/v) . The flow rate was 1.0 mL · min^-1 and the column temperature was 30 ℃. The detection wave-length was 254 nm. Results The calibration curve was linear within 0.7-7.0 μg · mL^-1 (r=0. 999 9), 0. 384--3.84μg · mL^-1(r= 0. 999 6), 1. 803-18.03μg · mL^-1 (r= 0. 999 7), and 0. 504-5.04 μg · mL^-1(r=0. 999 9) for emodin, rhein, chrysophanol, and rheochrysidin, respectively. The average recoveries were 99. 3%, 100. 7%, 100. 9% and 99.1% for emodin, rhein, chrysophanol, and rheochrysidin, respectively. Conclusion This method is convenient, accurate and reproducible for the determination of emodin, rhein, chrysophanol, and rheoehrysidin in Tongshukoushuang capsules.
出处
《中南药学》
CAS
2009年第1期20-23,共4页
Central South Pharmacy