Content determination method for radix ophiopogonis total saponins in Yixinshu preparation
The technology of total saponins of Ophiopogon japonicus and Yixinshu preparation is applied in the field of content determination of total saponins of Ophiopogon japonicus in Yixinshu preparation, and can solve the problems such as no relevant patents and literature reports.
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Embodiment 1
[0079] Embodiment 1 of the present invention: a method for determining the content of Ophiopogon japonicus total saponins in Yixinshu preparations, the steps are as follows:
[0080](1) Chromatographic conditions and system suitability test: octadecylsilane bonded silica gel is used as filler; methanol is used as mobile phase A, 0.02% phosphoric acid aqueous solution is used as mobile phase B, gradient elution, elution condition: 0 ~5min: A:B=25:75; 5~35min: A:B=25~35:75~65; 35~70min: A:B=35~50:65~50; 70~80min: A:B =50~25: 50~75; 80~110min: A: B=25: 75; Detection wavelength is 397nm, and flow rate is 0.8mL / min, and column temperature is 25 ℃, and number of theoretical plates is expressed as ruscogenin (C 27 h 42 0 4 ) peak calculation is not less than 3000;
[0081] (2) Preparation of reference substance solution: get ruscogenin (C 27 h 42 0 4 ) appropriate amount of reference substance, accurately weighed, add methanol respectively to make a solution containing 50ug per...
Embodiment 2
[0084] Embodiment 2 of the present invention: a method for determining the content of Ophiopogon japonicus total saponins in Yixinshu preparation, the steps are as follows:
[0085] (1) Chromatographic conditions and system suitability test: octadecylsilane bonded silica gel is used as filler; methanol is used as mobile phase A, 0.2% phosphoric acid aqueous solution is used as mobile phase B, gradient elution, elution condition: 0 ~5min: A:B=25:75; 5~35min: A:B=25~35:75~65; 35~70min: A:B=35~50:65~50; 70~80min: A:B =50~25: 50~75; 80~110min: A: B=25: 75; The detection wavelength is 397nm, the flow velocity is 0.9mL / min, the column temperature is 30 ℃, and the number of theoretical plates is expressed as ruscogenin (C 27 h 42 0 4 ) peak calculation is not less than 3000;
[0086] (2) Preparation of reference substance solution: get ruscogenin (C 27 h 42 0 4 ) appropriate amount of reference substance, accurately weighed, add methanol respectively to make a solution containi...
Embodiment 3
[0089] Embodiment 3 of the present invention: a method for determining the content of Yixinshu preparation Ophiopogon japonicus total saponins, the steps are as follows:
[0090] (1) Chromatographic conditions and system suitability test: use octadecylsilane bonded silica gel as filler; use methanol as mobile phase A, 1% phosphoric acid aqueous solution as mobile phase B, gradient elution, elution condition: 0 ~5min: A:B=25:75; 5~35min: A:B=25~35:75~65; 35~70min: A:B=35~50:65~50; 70~80min: A:B =50~25:50~75; 80~110min: A:B=25:75; the detection wavelength is 203nm, the flow rate is 1.0mL / min, the column temperature is 35°C, the number of theoretical plates is not low based on the peak of ginsenoside Re at 3000;
[0091] (2) Preparation of reference substance solution: get ruscogenin (C 27 h 42 0 4 ) amount of reference substance, accurately weighed, add methanol respectively to make every 1mL containing ruscogenin (C 27 h 42 0 4 ) 50ug of the solution, to obtain;
[0092...
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