Determination method for HPLC specific chromatogram of codonopsis tubulosa kom dried root
A characteristic map and measurement method technology, applied in the field of pharmacy, can solve problems such as uneven quality of medicinal materials, low quality control level, and impact on the healthy and sustainable development of the industry
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[0063] The embodiment of the present invention: the method for determining the HPLC characteristic spectrum of Guizhou Codonopsis Radix Codonopsis medicinal materials, 17 groups of Guizhou Codonopsis Radix from different origins were collected from March to April of the same year, and the fresh products collected were washed, dried and pulverized through a 40-mesh sieve. , obtain dry sample powder for use; take about 5g of the above dry sample powder, accurately weigh it, put it in a 100mL conical flask with a stopper, and perform ultrasonic extraction with 70% ethanol for 3 times, each 30min, ultrasonically The extraction power is 100W, and the frequency is 50Hz; after extraction, filter and combine the filtrate; after the filtrate is evaporated to dryness, the obtained residue is completely dissolved in methanol, and methanol is added to the volume, shaken, and filtered, and the subsequent filtrate is taken, and then used 0.45μm organic microporous membrane was filtered to ob...
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