Quality control method for Keyin pills
A detection method and technology for gram silver, which can be used in measurement devices, pharmaceutical formulations, material inspection products, etc., can solve the problems of complex active ingredients and lack of effective quality control methods for preparations.
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experiment example 1
[0026] Experimental Example 1 Qualitative detection experiment of bean root
[0027] 1. The investigation of the preparation method of the test solution
[0028] Take the pill obtained in Example 2, pulverize it, weigh 5 parts, 10 grams per part, add 25 ml of chloroform, 1 ml of concentrated ammonia solution, heat and reflux on a water bath for 20 min, 40 min, 60 min, 80 min, 100 min, filter, and evaporate the filtrate to dryness. Add 1ml of chloroform to the residue to dissolve it as the test solution. Another 1 g of Beidougen reference medicinal material was taken, and the same method was used to prepare the reference medicinal material solution respectively. According to the thin-layer chromatography test, absorb the same amount of the above-mentioned solution, spot it on the same silica gel G thin-layer plate, use 9:2 ratio of benzene-acetone as the developing solvent, put it in a chromatography cylinder saturated with ammonia vapor, develop, take out , dry it, and inspe...
experiment example 2
[0045] Experimental example 2 qualitative detection experiment of white fresh bark
[0046] 1. The investigation of the preparation method of the test solution
[0047] Take 1 g of white fresh cortex reference medicinal material, and prepare the reference medicinal material solution according to the preparation method under test a. Take the test solution under item a, test according to the thin-layer chromatography method, draw the above two solutions, respectively point on the same silica gel G thin-layer plate, use benzene-acetone as the developing agent, and set the ammonia vapor saturated chromatography In the cylinder, unfold, take out, dry, and put it under the ultraviolet light (365nm) to inspect, in the chromatogram of the test product, the fluorescent spots of the same color are displayed on the positions corresponding to the chromatogram of the control medicinal material. Known by above-mentioned test, in the detection method a, need testing solution contains the sa...
experiment example 3
[0060] Experimental Example 3 Qualitative detection experiment of gallic acid in ginseng
[0061] 1. The investigation of the preparation method of the test solution
[0062] Take the pill obtained in Example 2, pulverize it, weigh 5 parts, 10 grams per part, add 30 ml of water and stir to make it uniformly dispersed, filter it with absorbent cotton, extract the filtrate twice with the following solvent, 30 ml each time, combine the extracts, and concentrate To 1ml, as the test solution. Take gallic acid reference substance, add ethanol to make a solution containing 0.5mg per 1ml, as the reference substance solution. According to the thin-layer chromatography test, absorb 10 μl of the above-mentioned equal amount of the test solution and the reference solution, respectively spot on the same silica gel G thin-layer plate, use toluene-ethyl acetate-formic acid as the developer, develop, take out, cool Dry, spray 1% ferric chloride ethanol solution, in the chromatogram of the t...
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