Abstract:
OBJECTIVE To study supplements for the quality standard for Shugan Concentrated Pills.
METHODS The TLC methods of corydalis rhizoma, Magnoliae officinalis cortex and Aucklandiae radix were optimized. The contents of paeoniflorin, naringin, hesperidin and neohesperidin were simultaneous determined by HPLC. The chromalographic separation was proformed on a C
18 column with acetonitrile(A)-0.2% phosphoric acid solution(B) with gradient elution as mobile phase(0~40 min, 15%A→25%A). The flow rate was 1.0 mL·min
-1. The detection wavelength was set at 230 nm.
RESULTS The calibration curves were linear within the range of 0.023 81-4.762 μg for paeoniflorin, 0.025 65-10.26 μg for naringin, 0.022 03-2.644 0 μg for hesperidin and 0.025 44-5.087 6 μg for neohesperidin. All ingredients showed a good linear relationship (
r=0.999 9). The average recoveries were 102.6%, 101.7%, 100.5% and 102.9%, respectively. RSDs were 0.8%, 1.2%, 2.3% and 0.9%, respectively.
CONCLUSION The established identification and determination methods can provide references for improvement of quality standards for Shugan Concentrated Pills.