High-performance liquid phase detection method for heart-calming granules
A detection method, high-efficiency liquid phase technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of simple operation, good stability, and accurate measurement
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[0029] Determination of the contents of notoginsenoside R1, ginsenoside Rg1, tangshenoside, ginsenoside Rb1 and ginsenoside Rd in Wenxin Granules.
[0030] 1. Instruments and reagents
[0031] Instrument: Angilent1260 high performance liquid chromatography, DAD detector.
[0032] Reagents: Acetonitrile is chromatographically pure, water is ultrapure water, and other reagents are analytically pure. Reference substances: Panax notoginsenoside R1, ginsenoside Rg1, ginsenoside Rb1 and ginsenoside Rd were purchased from the Central Inspection Institute, with a purity of 95%; Codonopsis was purchased from Yifang Science and Technology, with a purity of 98%.
[0033] 2. Selection of chromatographic conditions:
[0034] Column: AmethystC 18 -H (4.6×250mm, 4μm); mobile phase: Acetonitrile is mobile phase A, water is mobile phase B;
[0035] The present invention adopts the gradient elution method, and the elution sequence is: 0-14min, 22%-30%A; 14-35min, 30%-38%A; 35-45min, 38%-38%...
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