Method for determining flavonoid components in classic famous prescription Dajianzhong decoction
A technology of Dajianzhong Decoction and flavonoids, which is applied in the field of determination of flavonoids in the classic famous prescription Dajianzhong Decoction, can solve the problems of high proportion of jelly and maltose, interference of content determination of index components in preparations, etc., and improve safety And reliability, stability and repeatability, the effect of improving quality standards
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[0036] The preparation method of water-saturated n-butanol is as follows: n-butanol and distilled water are mixed (the mixing ratio is 1:1 by volume), shaken, mixed, and left to separate layers. The upper layer is a water-saturated n-butanol solution, and the lower layer It is an aqueous solution saturated with n-butanol.
[0037] The rutin reference substance was purchased from the China National Institute for Food and Drug Control, with a purity of 91.7%; the hyperoside reference substance was purchased from the China Food and Drug Control Institute, with a purity of 99.41%; the quercetin reference substance was purchased from the China Food and Drug Control Institute, 99.17% purity.
[0038]The Dajianzhongtang preparation used in the embodiments of the present invention is prepared according to the ancient recipe of the classic recipe Dajianzhongtang (Synopsis of the Golden Chamber), and the specific preparation method is as follows: take 9g of Sichuan pepper (to remove swe...
Embodiment 1
[0039] Embodiment 1, the method for qualitative determination of rutin, hyperin and quercetin in Dajianzhong Decoction
[0040] Under the following chromatographic conditions, simultaneously determine whether Dajianzhong Decoction contains rutin, hyperin, and quercetin.
[0041] Preparation of Dajianzhong Decoction test solution: same as in Example 2.
Embodiment 2
[0044] Embodiment 2, the method for quantitative determination of rutin, hyperin and quercetin content in Dajianzhong Decoction
[0045] Taking rutin, hyperin, and quercetin as reference substances, the contents of rutin, hyperin, and quercetin in Dajianzhong Decoction were simultaneously determined under the following chromatographic conditions.
[0046] Preparation of Dajianzhongtang test solution: Take 2g of Dajianzhongtang preparation, add 8ml of pure water, shake to dissolve completely, add water-saturated n-butanol and shake to extract 4 times, add water-saturated n-butanol each time The amount of butanol is 10ml, combine the n-butanol solution, recover the solvent to dryness, dissolve the residue with a small amount of methanol, transfer it to a 2ml volumetric flask, add methanol to the mark, shake well, filter, and take the subsequent filtrate.
[0047] Preparation of reference substance solution: Weigh 112.93 mg of rutin reference substance, 25.22 mg of hyperoside ref...
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