Preparation Process and Quality Standard of Qingyanlihou Powder Bag
Objective To study the preparation process and quality standard of Qingyanlihou Powder Bag.Methods The effects of drying time,temperature,particle size and load on the quality of the finished product were investigated,and the preparation technology was determined based on various factors.The identification method of Fritillaria thunbergii was established and the gallic acid content was determined.Results The drying conditions of decoction pieces were optimized by orthogonal test(The stack thickness is 3 cm,the temperature is 90℃,and the time is 2 h),the thin layer chromatography for thunberg fritillary bulb(Ethyl acetate-methanol-concentrated ammonia test solution(17:2:1)was used as the developing agent,unfolded,taken out,dried,and sprayed with dilute bismuth potassium iodide test solution.)and the HPLC method for gallic acid were established(Mobile phase:methanol-0.1%phosphoric acid(12:88);flow rate:1 ml/min;column temperature:30℃;detection wavelength:273 nm).Conclusion The process is reasonable,stable and can be used as the production process of the preparation.The quality detection method is accurate and feasible,and can be used as the internal control standard of the preparation.
Qingyanlihou Powder BagPreparation processQuality standard
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