Method for determining contents of three flavonoid chemical components in folium apocyni veneti
A determination method and technology for chemical components are applied in the field of content determination of three flavonoid chemical components in apocynum leaves, which can solve the problems of not being retrieved and unable to fully reflect the quality of medicinal materials.
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experiment example 1
[0034] Experimental example 1 content determination method investigation
[0035] 1 Instruments and reagents
[0036]ACQUITY UPLC H-CLASS (equipped with quaternary solvent manager, sample manager FTN, PDA detector, American Waters Company); XEVO TQ-S triple quadrupole mass spectrometer (American Waters Company); MS105 electronic analytical balance (Swiss Mettler Toleduo Company); XH-300UL-2 dual-frequency ultrasonic microwave ultraviolet combination instrument (Beijing Xianghu Technology Development Co., Ltd.); KQ-5200DE ultrasonic cleaning instrument (Kunshan Ultrasonic Instrument Co., Ltd.); H1850 desktop high-speed centrifuge (Changsha Xiangyi Centrifuge Instrument Co., Ltd.); 1000Y high-speed multifunctional pulverizer (Yongkang Boou Hardware Products Co., Ltd.); RE-3000A rotary evaporator (Shanghai Yarong Biochemical Instrument Factory); HH-4 water bath (Shanghai Lichen Bangxi Instrument Technology Co., Ltd.);
[0037] Chlorogenic acid (batch number MUST-13031401, purit...
Embodiment 1
[0066] A method for simultaneously determining the content of three flavonoid chemical components in the leaves of Apocynum apocynum:
[0067] The chromatographic conditions are: the chromatographic column is HSS C18 SB (2.1×100mm, 1.8μm); the mobile phase is acetonitrile (B) -0.2% formic acid water (D), and the gradient elution condition is 0-1 min, 5%-9 %B; 1-1.6 min, 9%-10%B; 1.6-2.0min, 10%-13%B; 2-5 min, 13%-14%B; 5-8 min, 14%B; 10 min, 14%-30%B; 10-11 min, 30%-45%B; 11-11.5 min, 45%-60%B; 11.5-12 min, 60%-90%B; 12-12.5 min , 90-5% B; volume flow rate 0.3mL•min-1; injection volume 1 μL; injection chamber temperature 20 °C; column temperature 38 °C.
[0068] Mass spectrometry conditions are: ESI ion source, simultaneous scanning and detection in positive and negative ion modes, scanning range (m / z): 100-1000, capillary voltage 2.8 kV, ion source temperature 500 ℃, desolvation gas N2, gas flow 700 L h -1, collision gas argon, collision gas flow 0.1 mL•min-1, MRM quantitativ...
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