The Establishment Method and Standard Fingerprint of Crow Onion Fingerprint
A fingerprint spectrum and a technology for establishing a method are applied in the field of the establishment of the standard fingerprint spectrum of scallion and scallion, and the effects of less impurity signal interference, high stability and less impurities are achieved.
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Embodiment 1
[0037] Embodiment 1: the establishment of the fingerprint spectrum of Scallops
[0038] 1) Drugs, reagents and instruments
[0039] A total of 12 batches of scallion medicinal materials were collected in Yitong, Jilin Province; Shimadzu LC-10ATVPPlus high-performance liquid chromatography was used; reagents were chromatographically pure or analytically pure;
[0040] 2) Preparation of the test solution
[0041] Precisely weigh 2.00g of the coarse powder of the coriander, put it in a container with a stopper, add 50ml of 70% ethanol precisely, weigh it after the stopper, extract it ultrasonically for 1 hour, let it stand still, let it cool down, make up the missing weight with 70% ethanol, and shake well , filtered. Take an appropriate amount of filtrate and filter it with a 0.45 μm microporous membrane as the test solution;
[0042] 3) Preparation of reference solution
[0043] Take Scutellaria flavone glycoside A (5,7,3′,4′-tetrahydroxyflavone-6-C-β-D-glucopyranone glycos...
Embodiment 2
[0047] Embodiment 2: Scallion standard fingerprint spectrum
[0048] There are a total of 12 batches of Yaonian medicinal materials, all of which were collected in Yitong, Jilin Province. The method described in the embodiment of the present invention 1 obtains the fingerprints of various batches of Scallops, uses the "Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System 2004 Edition" software analysis of the National Pharmacopoeia Commission, obtains the standard fingerprints of Scallops, and determines that 13 common Characteristic peaks, see figure 1 .
[0049] The 7th and 10th chromatographic peaks are corresponding to Scutellaria flavone glycoside A (5,7,3′,4′-tetrahydroxyflavone-6-C-β-D-glucopyranone glycoside) and Scutellaria glucoside D (5,7,4′-trihydroxyflavone-8-C-β-D-glucopyranoside), the total length of the spectrum is 75min, the average retention time of peak No. 7 is 31.65min, with peak No. 7 as the reference peak , calculate the relative ...
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