Angelice dehurica crude drug alcoholic extract effective component group fingerprint atlas and its establishing method and application
A technology of fingerprints and active ingredients, applied in the field of fingerprints, can solve problems such as unreported
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Embodiment 1
[0044] (1) Preparation method of the test product: Accurately weigh 20g of Angelica dahurica medicinal material, add 160ml of 95% ethanol, reflux extraction for 2h, evaporate the ethanol to dryness, dissolve the residue to 20ml with methanol, dilute 250ul to 7.5ml with methanol, and 0.45um microporous membrane, and the filtrate was used as the test solution for HPLC analysis. The test solution of Angelica dahurica medicinal materials from 13 different origins (see Table 10) were prepared respectively.
[0045] (2) Establishment of fingerprints of Angelica dahurica medicinal materials
[0046]Precisely draw 20ul of the test solution, and use high performance liquid chromatography to measure, using methanol-water as the mobile phase system, column temperature 30°C, injection volume 20ul, wavelength 254nm, 0-5min, 5%-20% methanol, 5 ~15min, 20% methanol 20~30min 20%~70% methanol, 20~30min 70% methanol, 30~40min 70%~90% methanol, flow rate 1ml / min, Lchrospher5-C18 (250mm×4.6mm) c...
Embodiment 2
[0052] Example 2 The study of spectrum dynamics
[0053] Extraction of different parts of Angelica dahurica Take 1kg of dried root of Angelica dahurica No. 5 Sichuan Suining (the original medicinal material without sulfur fumigation) (No. Ethyl acetate, acetone, 95% ethanol, methanol, and water 2L were refluxed and extracted for 3 hours in sequence, filtered after each refluxed extraction, and the solvent was evaporated to obtain six parts, namely cyclohexane, ethyl acetate and acetone. Part, 95% ethanol part, methanol part, water extraction part. Supercritical CO 2 The extraction part is separated by supercritical CO 2 extraction. 95% ethanol, methanol, and water have fewer peaks and lower peak positions. The cyclohexane part mainly includes the chromatographic peak in the II area of the alcohol extract, and the ethyl acetate part mainly includes the chromatographic peak in the III area of the alcohol extract.
[0054] Experimental research on analgesia: Hot plate ex...
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