Centipeda minima fingerprint spectrum and construction method thereof
A technology for constructing methods of goose not eating grass, which is applied in the field of traditional Chinese medicine detection, can solve the problems of not being able to fully reflect the integrity and characteristics of goose not eating herb and its preparations, and cannot provide chromatographic information at the same time, so as to achieve effective quality detection Or identification, effective quality inspection, good repeatability and stability
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Embodiment 1
[0053] Embodiment 1 Goose does not eat grass decoction pieces standard decoction freeze-dried powder
[0054] This embodiment provides a preparation method of standard decoction freeze-dried powder of goose not eating grass decoction pieces, comprising the following steps: take goose not eating grass decoction pieces, decoct twice in a casserole, add 12 times the weight of water for the first time to soak For 30 minutes, first boil with high heat, then decoct with low heat for 30 minutes, filter, add 10 times the amount of water for the second time, boil with high heat, then decoct with low heat for 25 minutes, filter, combine the filtrates, concentrate the filtrate (60°C) to the feed liquid Concentrated extract with a ratio of 1:1 (the ratio of solid to liquid is the mass ratio (g / g) of Goose Bubioca decoction pieces to Goose Bubiograss filtrate), freeze-dried in a freeze dryer, and crushed into powder to obtain .
Embodiment 2
[0055] Example 2 Goose does not eat grass formula granules
[0056] This embodiment provides a method for preparing goose-bushi formula granules, comprising the following steps:
[0057] Take goose not eating grass decoction pieces, heat and reflux to extract twice, first add 16 times the weight of water to soak for 30min, heat and reflux to extract for 1.0h, filter, add 14 times the weight of water to extract for 0.5h for the second time, filter, Combine the filtrates, concentrate the filtrates to a relative density of 1.04g / ml-1.12g / ml at 60°C, dry them, add appropriate amount of auxiliary materials, and granulate to obtain the product.
Embodiment 3
[0059] This embodiment provides a method for constructing the fingerprint of goose not eating grass, comprising the following steps:
[0060] (1) Preparation of test solution: get 0.2 g of standard decoction freeze-dried powder of Goose Bushicao decoction pieces prepared in Example 1, accurately weighed, put in a stoppered Erlenmeyer flask, and the precise addition volume percentage is 50% Methanol aqueous solution 10ml, weighed, ultrasonically treated for 30 minutes, taken out, allowed to cool, weighed again, took 50% methanol aqueous solution to make up the lost weight, shaken well, filtered, and took the filtrate as the test product solution.
[0061] (2) Preparation of the reference solution: take 1.0 g of the goose grazing reference medicinal material, put it in a stoppered Erlenmeyer flask, add 50 ml of water, weigh it, heat and reflux for 45 minutes, add water to make up the lost weight, shake well, Filtrate, evaporate the filtrate to dryness, let it cool, add 10ml of ...
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