Determination of baicalin and hesperidin in Muxiangliqi Pills by HPLC

AIM: To establish the determination of baicalin and hesperidin in Muxiangliqi Pills (Radix Saussureae seu Vladimiriae, Pericarpium Citri Reticulatae Viride, Pericarpium Citri Reticulatae, Rhizoma Cyperi, etc.). METHODS: The determination was carried out by HPLC with octodelyl silicohydrides silanes bonded silica gel as a packing material, methanol water glacial acetic acid (35∶61∶4) as a mobile phase, detection wavelength at 283nm, flow rate at 1mL·min -1 . RESULTS: Hesperidin showed a good linear relationship at the range of 0.072μg ～0.360μg. Baicalin showed a good linear relationship at the range of 0.104μg～0.520μg. The average recoveries were 97.0% and 97.8%, respectively. RSD were 1.93% and 1.69%, respectively. CONCLUSION: The method is sensitive, accurate, reproducible, specific and can be used for quality control of Muxiangliqi Pills.