A detection method for simultaneously determining the contents of flavonoids and terpene lactones in Shuxuening
A technology of flavonoid glycosides and ginkgolides, which is applied in the field of high-performance liquid chromatography detection, can solve the problems of insufficient process simplicity and complicated operation steps, and achieve the effects of low cost, good durability and easy realization
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Embodiment 1
[0040] (1) Chromatographic conditions: the stationary phase is a chromatographic column filled with octadecyl bonded silica gel; the UV detector is connected in series with the ELSD detector; the UV detection wavelength is 360nm; the flow rate is 1mL / min; the mobile phase A is 0.05% tetrahydrofuran -0.1% formic acid-5% methanol-water mixed solvent, the volume ratio is 1:2:10:950; mobile phase B is a mixed solvent of 0.1% tetrahydrofuran-methanol-acetonitrile solution, the volume ratio is 1:1000, wherein Methanol-acetonitrile solution is a solution with a volume ratio of methanol and acetonitrile of 1:1; gradient elution is performed, and the gradient conditions are:
[0041]
[0042]
[0043] ; ELSD conditions are: drift tube temperature 110°C, carrier gas flow rate 2.5L / min, gain value 1.
[0044] (2) Reference substance stock solution: accurately weigh rutin, isoquercitrin, narcissin, 3-O-{2-O-[6-O-(p-hydroxy-trans-coumaroyl)-glucosyl] -(1-2)rhamnosyl}kaempferol, quer...
Embodiment 2
[0059] (1) Chromatographic conditions: the stationary phase is a chromatographic column filled with octadecyl bonded silica gel; the UV detector is connected in series with the ELSD detector; the UV detection wavelength is 360nm; the flow rate is 1mL / min; the mobile phase A is 0.05% tetrahydrofuran -0.1% formic acid-5% methanol-water mixed solvent, the volume ratio is 1:2:10:950; mobile phase B is a mixed solvent of 0.1% tetrahydrofuran-methanol-acetonitrile solution, the volume ratio is 1:1000, wherein Methanol-acetonitrile solution is a solution with a volume ratio of methanol and acetonitrile of 1:1; gradient elution is performed, and the gradient conditions are:
[0060] time (min)
A(%)
B(%)
0~30
90→80
10→20
30~33
80→79
20→21
33~47
79→79
21→21
47~63
79→67
21→33
63~74
67→45
33→55
74~75
45→90
55→10
[0061] ; ELSD conditions are: drift tube temperature 110°C, carrier gas flow rate 2.5...
Embodiment 3
[0077] (1) Chromatographic conditions: the stationary phase is a chromatographic column filled with octadecyl bonded silica gel; the UV detector is connected in series with the ELSD detector; the UV detection wavelength is 360nm; the flow rate is 1mL / min; the mobile phase A is 0.05% tetrahydrofuran -0.1% formic acid-5% methanol-water mixed solvent, the volume ratio is 1:2:10:950; mobile phase B is a mixed solvent of 0.1% tetrahydrofuran-methanol-acetonitrile solution, the volume ratio is 1:1000, wherein Methanol-acetonitrile solution is a solution with a volume ratio of methanol and acetonitrile of 1:1; gradient elution is performed, and the gradient conditions are:
[0078] time (min)
A(%)
B(%)
0~30
90→80
10→20
30~33
80→79
20→21
33~47
79→79
21→21
47~74
79→45
21→55
74~75
45→90
55→10
[0079] ; ELSD conditions are: drift tube temperature 110°C, carrier gas flow rate 2.5L / min, gain value 1.
[0080]...
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