A construction method and identification method of uplc characteristic map of bran-fried Atractylodes atractylodes decoction pieces, standard decoction and formula granules
A technology of formula granules and characteristic map, applied in the directions of instruments, measuring devices, scientific instruments, etc., can solve the problem that the qualitative and quantitative control of bran fried Atractylodis japonica is limited to, and has not yet been controlled by the characteristic map, and achieves good peak separation. , the method is stable, the effect of high precision
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Embodiment 1
[0044] Construction of UPLC characteristic maps of bran-fried Atractylodes atractylodes decoction pieces, standard decoction and formula granules.
[0045] 1. Test method
[0046] 1.1 Preparation of reference substance solution: (1) Take atractylodes and chlorogenic acid reference substances, weigh them accurately, add methanol to make a mixed solution containing 20μg per 1ml, shake well, and obtain. (2) Take 0.4g of Atractylodes atractylodis as reference drug, accurately weigh it, put it into a stoppered Erlenmeyer flask, accurately add 15ml of 50% methanol, weigh it, treat it with ultrasound for 30 minutes, let it cool, and make up for the lost weight with 50% methanol, Shake well, filter, and take the continued filtrate.
[0047] 1.2 Chromatographic conditions: use octadecylsilane bonded silica gel as filler, acetonitrile as mobile phase A, 0.1% formic acid as mobile phase B, carry out gradient elution according to the provisions in Table 6; the flow rate is 0.3ml per minu...
Embodiment 2
[0072] A method for identifying bran-fried Atractylodes herb decoction pieces, standard decoction and formula granules, comprising the following steps:
[0073] (1) Precisely weigh the decoction pieces of bran-fried Atractylodes atractylodes to be identified, standard decoction and formula granules, and prepare sample solutions of decoction pieces of bran-fried Atractylodes atractylodis to be identified, standard decoction and formula granules;
[0074] (2) Precisely absorb the sample solution of bran-fried Atractylodes decoction pieces to be identified, standard decoction and formula granules, inject them into an ultra-high performance liquid chromatograph for measurement, and obtain the UPLC characteristics of the unidentified bran-fried Atractylodes decoction pieces, standard decoction and formula granules Atlas;
[0075] (3) Compare the measured UPLC characteristic atlas with the constructed UPLC characteristic atlas of bran-fried Atractylodes herb decoction pieces, standa...
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