Preparation method of Yunv decoction reference substance and quality control method of fingerprint spectrum
A technology for standard fingerprints and reference materials, which is applied in the preparation of reference materials for Yunujian and the quality control of fingerprints, and can solve problems such as inconsistencies
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Embodiment 1
[0103] In parts by weight, take 18.65g of raw gypsum, 37.3g of Rehmannia glutinosa, 5.6g each of Zhimu and Achyranthes bidentata, 7.4g of Radix Ophiopogon japonicus, add 6 times the amount of water to soak for 30 minutes, decoct once, and decoct at 100°C for 5 minutes. Simmer at 88°C for 30min, and concentrate the obtained water extract at 50°C with a concentration pressure of -0.09Mpa to 1:1, then freeze the concentrate at -80°C for 12h, and then dry at -50°C After 20 hours, the extract powder was obtained after pulverization, that is, the reference substance sample 1 of Yunujian # .
Embodiment 2
[0105] 1. Preparation of the test substance and reference substance
[0106] Get the Jade Nv Decoction reference material sample 1 prepared in Example 1 # 3g, add 50ml of 75% ethanol aqueous solution, sonicate for 30min, let it cool and filter, take the subsequent filtrate, concentrate to near dryness, add 50% methanol aqueous solution to dissolve and dilute to 5ml volumetric flask, pass through 0.45μm microporous membrane to obtain The test solution 1#.
[0107] Take 5-hydroxymethylfurfural, neomangiferin, mangiferin, β-ecdysterone, verbascoside, isoverbacoside and Ophiopogon japonicus methyl flavanone A reference substances, add methanol to dissolve and dilute to volume, shake well, Filter through a 0.45 μm microporous membrane, and take the subsequent filtrate to obtain the reference substance solution.
[0108] 2. Chromatographic conditions
[0109] The chromatographic conditions of high performance liquid chromatography are: chromatographic column: Welchrom C 18 Chrom...
Embodiment 3
[0118] Adopt the detection method of the fingerprint of the Jade Nyme decoction reference material set up in the above-mentioned embodiment 2 to detect 15 batches of Jade Nyme decoction reference material samples, obtain the fingerprint of the test solution and the fingerprint of the reference substance solution, the obtained test sample The AIA format of the fingerprint data was imported into the 2012 version of the "Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System" issued by the National Pharmacopoeia Commission, and the chromatographic peaks that existed in the chromatograms of the reference substances of 15 batches of Yunujian were selected as the common characteristic peaks , 15 batches of Yunujian reference material fingerprints of the common model control chart, see the results Figure 10 .
[0119] Such as Figure 10 In the common model control spectrum shown, when comparing the fingerprints of 15 batches of Yunujian reference substances for sim...
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