Detection Method of Fingerprint of Xiaoer Ganmaoshu Granules
A technology of Xiaoer Ganmaoshu Granules and Ganmaoshu Granules, which is applied in the detection field of traditional Chinese medicine, to achieve the effect of avoiding one-sidedness, good reproducibility, and reducing the possibility
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Embodiment 1
[0043] Embodiment 1 A detection method for the fingerprint of Xiaoer Ganmaoshu Granules, comprising the following steps:
[0044] Step 1, preparation of Xiaoer Ganmaoshu Granules test solution:
[0045] Take the 12 batches of Xiaoer Ganmaoshu granules listed in Table 1 above, accurately weigh 5g of Xiaoermaoshu granules samples, place them in a 50mL conical flask, add 30mL of methanol, ultrasonicate for 30min, filter, evaporate the filtrate in a water bath, dissolve and evaporate with methanol Dry the matter and make it to a volume of 25 mL, then take 1 mL of each sample solution, make it to a volume of 5 mL, and pass through a 0.22 μm microporous membrane to obtain the test solution.
[0046] Step 2, preparation of reference substance solution:
[0047] Accurately weigh the reference substances of puerarin, chlorogenic acid, liquiritin, arctiin, and harpagoside, place them in a volumetric flask, dilute to the mark with methanol, and shake well to make 75.02 μg / mL of puerarin...
Embodiment 2
[0054] Example 2 Legal Research on Fingerprint Detection Method
[0055] 1. Precision research
[0056] The sample number prepared by the method of Example 1 is S1 need testing solution, analyzed according to the detection method of Example 1, parallel sampling 6 times, the injection volume is 10 μ L, with chlorogenic acid, puerarin, liquiritin, arctiin , harpagoside as the reference peak, by analyzing the peak area and retention time of the common peaks of the sample HPLC fingerprints and calculating the RSD value, the results are shown in Table 3, using the "Chinese medicine chromatographic similarity evaluation software 2004A" for fingerprint comparison and data Analysis, the result similarity is 0.96, the result shows that the parallel injection precision of this equipment is good.
[0057] Table 3 Precision Study Peak Area and Retention Time
[0058]
[0059] 2. Stability research
[0060] The sample number prepared by the method of Example 1 is S1 need testing solu...
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