Method for discerning tablets of tonifying stomach and promoting digestion
A technology of Taizishen and Chinese yam is applied in the identification field of Jianweixiaoshi tablets, which can solve the problems that effective ingredients cannot be fully utilized and the like
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Embodiment 1
[0025] Prescription: Pseudostellaria ginseng 228.6g, yam 171.4g, tangerine peel 22.9g, malt 171.4g, hawthorn 114.3g
[0026] Preparation method 1: Take 114.3g of Pseudostellariae Radix and 171.4g of Chinese yam, grind them into fine powder, take another 22.9g of tangerine peel, 171.4g of malt, 114.3g of hawthorn and the remaining 114.3g of Pseudostellariae Pseudostellaria, add water to decoct twice, and add water 10 times for the first time For the second time, add 8 times the amount of water, each time for 2 hours, combine the decoction, filter, and concentrate the filtrate at low temperature to a thick paste (specific gravity 1.30, 60°C), add the above fine powder and powdered sugar to make granules , dried, added magnesium stearate 16g, compressed into 1000 pieces (0.8g / piece), to obtain final product.
[0027] Preparation method 2: take 171.4g of Chinese yam, grind it into fine powder; Add 8 times the amount of water for 2 hours each time, combine the decoction, filter, a...
Embodiment 2
[0032] Prescription, preparation method are with embodiment 1
[0033] Tablets made by different methods can be identified by the following methods:
[0034] Take 3 g of tablet fine powder, add 80 ml of water, stir well, ultrasonically extract for 30 minutes, centrifuge for 15 minutes (4000 rpm), discard the supernatant, add 10 ml of water to the precipitate, stir well, ultrasonically extract for 30 minutes, and centrifuge for 15 minutes ( 4000 rev / min), get supernatant, as need testing solution.
[0035] Take 2ml of the test solution, add 2 drops of 2% ninhydrin ethanol solution dropwise, shake well, put it in a boiling water bath and heat until color develops; The prepared test product did not appear blue-purple within 4 minutes.
Embodiment 3
[0037] Prescription, preparation method are with embodiment 1
[0038] 1600 pieces (0.5g / piece) were made respectively by different preparation processes, and the following methods were used for identification:
[0039] (1) Take 24 tablets, grind them finely, add 50ml of petroleum ether (60-90°C), extract under reflux for 1 hour, filter, evaporate the filtrate to dryness, add 1ml of ethyl acetate to dissolve the residue, and use it as the test solution. Take another 3.5 g of Pseudostellaria reference medicinal material, and prepare the reference medicinal material solution in the same way. According to thin-layer chromatography (Appendix VI B of Chinese Pharmacopoeia), draw 15 μl each of the above-mentioned test solution and reference drug solution, respectively spot on the same silica gel G thin-layer plate, and use cyclohexane-ethyl acetate (9: 1) As a developing agent, develop, take out, dry in the air, spray with 1% vanillin sulfuric acid solution, and heat at 105°C until...
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