Establishing method of tetrandra and poria decoction fingerprint atlas and fingerprint atlas
A technique of fingerprinting and establishing methods, which is applied in the field of traditional Chinese medicine analysis, can solve the problems of many components, single quality control, and few indicators, and achieve the effects of objective conclusion, control of preparation quality, and convenient operation
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Embodiment 1
[0038] Embodiment 1. Preparation of Fangji Fuling Decoction Composition
[0039] Weigh the following decoction pieces in proportion: Fangji 857g, Astragalus 857g, Guizhi 857g, Poria cocos 1714.3g, Licorice 571.4g, the above five flavors, add water and decoct twice, the first time for 2 hours, the second time for 1 hour, filter, and the filtrate Concentrate to a clear paste with a relative density of 1.20-1.25 (40° C.), add an appropriate amount of maltodextrin, mix, dry, and granulate to make 1000 g to obtain the Fangji Fuling Decoction composition.
Embodiment 2
[0040] Example 2. Establishment of Fangji Fuling Decoction Fingerprint
[0041] Instruments and reagents
[0042] Chromatography instrument: American Agilent 1100 series (G1322A online vacuum degasser, G1311A quaternary gradient pump, G1313A autosampler, G1316A column thermostat, G1315B diode array detector);
[0043] Column: Agilent ZORBAX SB C 18 5μm.4.6mm×250mm;
[0044] Reagents: Methanol and acetonitrile are chromatographically pure, and other reagents are analytically pure
[0045] Reference substance: Glycyrrhizic acid was purchased from Chengdu Master Biotechnology Co., Ltd., batch number MUST-14081812, with a purity of 98.23%.
[0046] Drugs: Composition of Fangji Fuling Decoction, batch numbers: 160401, 160402, 160403.
[0047] (1) Chromatographic conditions
[0048] The chromatographic column adopts octadecylsilane bonded silica gel chromatographic column; the flow rate is 1.0ml / min; the column temperature is 30°C; the detection instrument adopts an ultraviolet ...
Embodiment 3
[0056] Example 3. Methodological Investigation of Fingerprint of Fangji Fuling Decoction
[0057] Including stability, repeatability, and precision verification, the specific experimental results are shown below.
[0058] ① Inspection of precision
[0059] Prepare 1 part of need testing solution according to the method of this embodiment, inject 6 times continuously, measure fingerprint, overlay sees attached figure 1 . Calculate the relative standard deviation of the retention time and peak area of some chromatographic peaks, see Table 1.
[0060] Table 1 precision examines part of the chromatographic peak retention time and peak area relative standard deviation
[0061]
[0062] ② Stability inspection
[0063] Prepare 1 part of the test solution according to the method of this example, inject samples at 0h, 3h, 6h, 8h, 14h, 19h, and 24h respectively, and determine the fingerprints. The overlay is shown in the accompanying drawing. Calculate the relative standard de...
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