A method for determining the content of ginsenosides in Yixinshu preparation
A technology of Yixinshu preparation and ginsenoside, which is applied in the field of quality inspection of traditional Chinese medicine, and can solve problems such as content determination of ginsenoside Rc
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Embodiment 1
[0088] Example 1 of the present invention: Ginsenoside Rg in a Yixinshu preparation 1 , Re, Rb 1 , the assay method of Rc, the steps are as follows:
[0089] (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; the detection wavelength is 203nm, the flow rate is 0.8mL / min, the column temperature is 25°C, and the number of theoretical plates is not low based on the peak of ginsenoside Re at 3000;
[0090] (2) Preparation of reference substance solution: get ginsenoside Rg 1 , Ginsenoside Re, Ginsenoside Rb 1 , ginsenoside Rc reference substance amount, accurately weighed, respectively add methanol to make each 1mL containing ginsenoside Rg 1 0.1mg solutio...
Embodiment 2
[0093] Example 2 of the present invention: Ginsenoside Rg in a Yixinshu preparation 1 , Re, Rb 1 , the assay method of Rc, the steps are as follows:
[0094] (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 203nm, the flow rate is 0.9mL / min, the column temperature is 30°C, the number of theoretical plates is not low based on the peak of ginsenoside Re at 3000;
[0095] (2) Preparation of reference substance solution: get ginsenoside Rg 1 , Ginsenoside Re, Ginsenoside Rb 1 , ginsenoside Rc reference substance amount, accurately weighed, respectively add methanol to make each 1mL containing ginsenoside Rg 1 0.1mg solution, ev...
Embodiment 3
[0098] Example 3 of the present invention: Ginsenoside Rg in a Yixinshu preparation 1 , Re, Rb 1 , the assay method of Rc, the steps are as follows:
[0099] (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;
[0100] (2) Preparation of reference substance solution: get ginsenoside Rg 1 , Ginsenoside Re, Ginsenoside Rb 1 , ginsenoside Rc reference substance amount, accurately weighed, respectively add methanol to make each 1mL containing ginsenoside Rg 1 0.1mg solution, every 1mL containing...
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