Method for measuring content of five saponin components in red ginseng roots
A method of determination, technology of ginsenosides, applied in measuring devices, material separation, analysis of materials, etc.
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Embodiment 1
[0081] Chromatographic conditions and system suitability test column adopts BEH C 18 Chromatographic column; use acetonitrile as mobile phase A, 0.05% phosphoric acid as mobile phase B, and perform gradient elution. The elution gradient is: 0-9 minutes, mobile phase A: 18%→20%; 9-11 minutes, mobile phase A: 20%→28%; 11-40 minutes, the mobile phase A maintains 28%; the detection wavelength is 203nm; the flow rate is 0.4ml / min;
[0082] Preparation of mixed reference solution
[0083] Take an appropriate amount of ginsenoside Rg1 reference substance, ginsenoside Re reference substance, ginsenoside Rf reference substance, ginsenoside Rb1 reference substance, ginsenoside Ro reference substance, weigh them accurately, add methanol to make each 1ml contain 80 μg of ginsenoside Rg1 reference substance, A mixed solution of 60 μg of ginsenoside Re reference substance, 50 μg of ginsenoside Rf reference substance, 150 μg of ginsenoside Rb1 reference substance, and 100 μg of ginsenoside ...
Embodiment 2
[0087] Chromatographic conditions and system suitability test column adopts BEH C 18 Chromatographic column; use acetonitrile as mobile phase A, 0.10% phosphoric acid as mobile phase B, carry out gradient elution, the elution gradient is: 0-9 minutes, mobile phase A: 18%→20%; 9-11 minutes, mobile phase A: 20%→28%; 11-40 minutes, the mobile phase A maintains 28%; the detection wavelength is 203nm; the flow rate is 0.4ml / min;
[0088] Preparation of mixed reference solution
[0089] Take an appropriate amount of ginsenoside Rg1 reference substance, ginsenoside Re reference substance, ginsenoside Rf reference substance, ginsenoside Rb1 reference substance, ginsenoside Ro reference substance, weigh them accurately, add methanol to make each 1ml contain 80 μg of ginsenoside Rg1 reference substance, A mixed solution of 60 μg of ginsenoside Re reference substance, 50 μg of ginsenoside Rf reference substance, 150 μg of ginsenoside Rb1 reference substance, and 100 μg of ginsenoside Ro...
Embodiment 3
[0093] Chromatographic conditions and system suitability test column adopts BEH C 18 Chromatographic column; use acetonitrile as mobile phase A, 0.05% phosphoric acid as mobile phase B, and perform gradient elution. The elution gradient is: 0-9 minutes, mobile phase A: 18%→20%; 9-11 minutes, mobile phase A: 20%→28%; 11-40 minutes, the mobile phase A maintains 28%; the detection wavelength is 203nm; the flow rate is 0.4ml / min;
[0094] Preparation of mixed reference solution
[0095] Take an appropriate amount of ginsenoside Rg1 reference substance, ginsenoside Re reference substance, ginsenoside Rf reference substance, ginsenoside Rb1 reference substance, ginsenoside Ro reference substance, weigh them accurately, add methanol to make each 1ml contain 80 μg of ginsenoside Rg1 reference substance, A mixed solution of 60 μg of ginsenoside Re reference substance, 50 μg of ginsenoside Rf reference substance, 150 μg of ginsenoside Rb1 reference substance, and 100 μg of ginsenoside ...
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