Method for simultaneously quantifying stilbene glucoside and salvianolic acid B in Guidansaji capsules
A technology of stilbene glucoside and salvianolic acid, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effects of improving detection efficiency, easy popularization and mastering, and no evaporation
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[0034] (1) Chromatographic conditions and system suitability test: Octadecylsilane bonded silica gel is used as filler; methanol-acetonitrile-1.5% formic acid aqueous solution with volume ratio of 23~24:8~9:65~67 is used as mobile phase ;The detection wavelength is 300nm; the number of theoretical plates calculated based on the peak of salvianolic acid B should not be less than 2000;
[0035] (2) Preparation of reference substance solution Take an appropriate amount of stilbene glucoside and salvianolic acid B reference substance, weigh them accurately, add methanol to make a stock solution, then take the stock solution and add 70% methanol to make each 1ml containing 20 μg stilbene glycoside, salvianolic acid B A solution of 30 μg of phenolic acid B is available;
[0036] (3) Preparation of the test solution Take an appropriate amount of the contents of Guidan Seabuckthorn Capsules, grind it finely, take about 0.1g, weigh it accurately, put it in a 25ml volumetric flask, add ...
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