ABSTRACT
AIM To establish an HPLC method for the simultaneous content determination of ginsenoside Re,ginsenoside Rg1,ginsenoide Rb1,specnuezhenide,calycosin-7-O-β-D-glucoside and oleanolic acid in Yitai Cap sules (Ginseng Radix et Rhizoma,Astragali Radix,Ligustri lucidi Fructus,etc.).METHODS The analysis of 70％ ethanol extract of this drug was performed on a 25 ℃ thermostatic Luna C18 column (4.6 mm ×250 mm,5 μm),with the mobile phase comprising of methanol-O.2％ phosphoric acid flowing at 1.0 mL/minin a gradient elution manner,and the detection wavelength was set at 203 nm.RESULTS Six constituents showed good linear relationships within their own ranges (r ＞ 0.999 0),whose average recoveries were 95.58％-102.12％ with the RSDs of 0.82％-1.73％.CONCLUSION This simple and stable method can be used for the rapid quality control of Yitai Capsules.
ABSTRACT
In order to effectively remove the invalid impurities in Tongan injection, optimize the optimal parameters of the impurity removal technology of liquid mixing process, in this paper, taking Tongan injection as the research object, with the contents of celandine alkali, and sinomenine, solids reduction efficiency, and related substances inspection as the evaluation indexes, the removal of impurities and related substances by the combined process of refrigeration, coction and activated carbon adsorption were investigated, the feasibility of the impurity removal method was definited and the process parameters were optimized. The optimized process parameters were as follows: refrigerated for 36 h, boiled for 15 min, activated carbon dosage of 0.3%, temperature 100 degrees C, adsorption time 10 min. It can effectively remove the tannin, and other impurities, thus ensure the quality and safety of products.