Study on the Quality Standard for Mongolian Medicine Yishen Powder / 中国药房

ABSTRACT

OBJECTIVE:To establish the quality standard for Mongolian medicine Yishen powder. METHODS:TLC was used for the qualitative identification of Rheum palmatum and Terminalia chebula in the preparation;HPLC was used for the contents de-termination of aloe emodin,rhein,emodin,chrysophanol and physcionthe column was Inertsil C18 with mobile phase of metha-nol-0.1% phosphoric acid(gradient elution)at a flow rate of 1.0 mL/min,detection wavelength was 254 nm,column temperature was 35 ℃ and the injection volume was 10 μL. RESULTS:The TLC pots of R. palmatum and T. chebula were clear and well-sepa-rated,negative control without interference. The linear range was 23.55-117.75 ng for aloe emodin(r=0.9999),44.72-223.62 ng for rhein(r=0.9998),43.18-215.90 ng for emodin(r=0.9997),77.41-387.12 ng for chrysophanol(r=0.9999)and 46.02-230.10 ng for physcion (r=0.9997);RSDs of precision,stability and reproducibility tests were lower than 2.0%;recoveries were 95.80%-99.66%(RSD=1.21%,n=6),95.01%-98.07%(RSD=0.92%,n=6),95.06%-97.84%(RSD=0.5%,n=6),95.19%-97.66%(RSD=1.07%,n=6)and 95.07%-98.20%(RSD=0.95%,n=6). CONCLUSIONS:The established standard can be used for the quality control of Mongolian medicine Yishen powder.