RESUMEN
Objective:To establish an HPLC method for the simultaneous determination of chloroginic acid, baicalin and luteolin in Julan Ganmao particles. Methods:A Diamosil C18 (2) column(250 mm × 4. 6 mm,5μm) was used. The mobile phase consisted of acetonitrile and 0. 2% phosphoric acid with gradient elution. The flow rate was 1. 0 ml·min-1 , the column temperature was 35℃, and the detection wavelength was at 327 nm for chloroginic acid and baicalin, and 360 nm for luteolin. Results:Chloroginic acid, ba-icalin and luteolin was in a good linear relationship within the range of 0. 50-9. 96 μg·ml-1(r=0. 999 8), 10. 10-202. 00 μg·ml-1 (r=0.999 5), and 0.10-2.04 μg·ml-1(r=0.999 6) with the recovery of 98.13%(RSD=0.65%), 98.80%(RSD=0.26%) and 99. 62%(RSD=0. 57%), respectively. Conclusion: The developed method is simple, accurate and reliable with good repeat-ability, and can be used in the quality control of chloroginic acid, baicalin and luteolin in Julan Ganmao particles.