A quality detection method for a combination of medicines for treating cough, dyspnea and chest fullness
A quality inspection method and drug technology, applied in the field of pharmaceutical inventions, can solve problems such as decomposition of active ingredients, long heating and reflux time, blurred target spots, etc., and achieve the effects of reducing time cost, shortening drying time, and reducing heating time
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Embodiment 1
[0030] 【Properties】This product is granules, the content is light brown granules; sweet, slightly astringent.
[0031] [Identification] Take 4g of the drug, grind it finely, add 15-25ml of ethyl acetate-ethanol at a ratio of 4:1 to dissolve, heat and reflux in a water bath for 30min, filter, and evaporate the filtrate in a water bath to exhaust the air. Negative pressure environment, add 1ml of ethyl acetate to the residue to dissolve, filter, and the filtrate is used as the test solution;
[0032] Take 1.3g of cotton root reference medicinal material and 1.5g of pine cone reference medicinal material respectively, add 30ml of water to each, boil for 25 minutes, filter, and shake the filtrate with 10ml of ethyl acetate-ethanol solution with a ratio of 4:1. Dehydrate the water with sodium sulfate, filter, evaporate the filtrate to dryness, and the environment of evaporation to dryness is a negative pressure environment of exhaust air, add 0.5ml of ethyl acetate to the residue t...
Embodiment 2
[0046]【Properties】This product is granules, the content is light brown granules; sweet, slightly astringent.
[0047] [Identification] Take 5g of the drug, grind it finely, add 15ml of ethyl acetate-ethanol at a ratio of 4:1 to dissolve, heat and reflux in a water bath for 35min, filter, and evaporate the filtrate to dryness in a water bath. Pressure environment, add 1ml of ethyl acetate to the residue to dissolve, filter, and the filtrate is used as the test solution;
[0048] Take 1.4g of cotton root reference medicinal material and 1.5g of pine cone reference medicinal material respectively, add 35ml of water to each, boil for 25 minutes, filter, and shake the filtrate with 10ml of ethyl acetate-ethanol solution with a ratio of 4:1. Dehydrate the water with sodium sulfate, filter, evaporate the filtrate to dryness, and the environment of evaporation to dryness is a negative pressure environment of exhaust air, add 0.5ml of ethyl acetate to the residue to dissolve, filter, a...
Embodiment 3
[0062] 【Properties】This product is granules, the content is light brown granules; sweet, slightly astringent.
[0063] [Identification] Take 6g of the drug, grind it finely, add 25ml of ethyl acetate-ethanol at a ratio of 4:1 to dissolve, heat and reflux in a water bath for 40min, filter, and evaporate the filtrate to dryness in a water bath. Pressure environment, add 1ml of ethyl acetate to the residue to dissolve, filter, and the filtrate is used as the test solution;
[0064] Take 1.7g of cotton root reference medicinal material and 2.5g of pine cone reference medicinal material respectively, add 50ml of water to each, boil for 40 minutes, filter, and shake the filtrate with 10ml of ethyl acetate-ethanol solution with a ratio of 4:1. Dehydrate the water with sodium sulfate, filter, evaporate the filtrate to dryness, and the environment of evaporation to dryness is a negative pressure environment of exhaust air, add 0.5ml of ethyl acetate to the residue to dissolve, filter, ...
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