HPLC fingerprint spectrum of pouzolzia zeylanica var. microphylla medicinal material or general flavonoids of pouzolzia zeylanica var. microphylla and building method and application of HPLC fingerprint spectrum
A technology of kudzu polyphylla and fingerprint spectrum, which is applied in the field of HPLC fingerprint spectrum of the medicinal material of kudzu puerariae or total flavonoids of pueraria juntae and its establishment field, and achieves the effects of good stability and reproducibility.
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Embodiment 1
[0052] Example 1 Establishment of HPLC Fingerprints of Pueraria multibranches or Total Flavonoids of Pueraria multibranches
[0053] 1. Instruments and reagents
[0054] Waters SYNAPT G2-S Q-TOF mass spectrometer (Waters, USA)
[0055] ACQUITY UPLC ultra-high performance liquid chromatography (American waters company)
[0056] ACQUITY UPLC BEH SHIELD RP18 Column (21mm×150mm, 1.7μm)
[0057] AY120 Tray Electronic Analytical Balance (Shimadzu Corporation, Japan)
[0058] DK-S24 Electric Heating Constant Temperature Water Bath (Shanghai Jinghong Experimental Equipment Co., Ltd.)
[0059] LABOROTA4000 rotary evaporator (Heidolph, Germany).
[0060] Acetonitrile is chromatographically pure (Opsen brand), liquid phase water is Watsons distilled water, ethanol is technical ethanol, and other reagents are analytically pure.
[0061] The medicinal materials of Pueraria microphylla were purchased from Yulin, Guangxi, and were identified as Pouzolzia zeylanica (L.) Benn.var.microphy...
Embodiment 2
[0076] Example 2 Identification of characteristic peaks of HPLC fingerprints of kudzu medicinal material or total flavonoids of kudzu
[0077] For the preparation of the test solution, refer to Item 2.1 in Example 1.
[0078] Chromatographic conditions refer to Item 2.2 in Example 1.
[0079] Preparation of reference solution: Accurately weigh 6,7-dimethyl-1,4-dihydro-2,3-quinoxalinedione, apigenin-6-C-a-L-arabinose 8-C-β-D- Glucoside, apigenin-6-C-[α-L-arabinose (1→6)-β-D-glucose], kaempferol-3-O-[α-L-rhamnose (1→6) -β-D-glucose]-7-O-α-L-glucoside, quercetin-3-O-[α-L-rhamnose (1→6)-β-D-glucose]-7- O-α-L-rhamnoside, quercetin-3,7-2-O-α-L-rhamnopyranoside, kaempferol-3-O-[α-L-rhamnose (1→ 6) An appropriate amount of -β-D-glucose]-7-O-α-L-rhamnoside and kaempferol-3,7-2-O-α-L-rhamnopyranoside reference substance is dissolved in an appropriate amount of methanol Configured as a reference solution, that is, too.
[0080] Mass spectrometry detection conditions: electrospray io...
Embodiment 3
[0085] Example 3 The method of using standard fingerprints to detect the authenticity of the medicinal material of Pueraria japonica
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