HPLC characteristic chromatogram of rhizome of Chinese goldthread and construction method and application thereof, and quality detection method of preparation of rhizome of Chinese goldthread
A characteristic map and construction method technology, which is applied in the quality detection of Coptidis preparations, the HPLC characteristic map of Coptis chinensis and its construction field, can solve the problem of inability to quickly and accurately judge the authenticity of Coptis chinensis, and the inability to comprehensively and effectively measure the quality of Coptis chinensis, etc. problems, to achieve the effect of stable quantity and quality transmission, good peak shape and strong operability
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[0105] In a preferred embodiment, the preparation method of test sample comprises the following steps:
[0106] (a) Add Coptidis Rhizoma Coptidis into water, boil it with strong fire, decoct it with slow fire for 15-25min, separate the filtrate and medicine dregs, add the medicine residue into water, boil it with strong fire, decoct it with slow fire for 10-20min, separate the filtrate and combine it twice filtrate;
[0107] (b) Concentrate the filtrate obtained in step (a), and obtain the test sample after drying.
[0108] In step (a), the specific operation for preparing the filtrate is not limited, and the extraction operation commonly used by those skilled in the art can be used. For example, it can be that 100g of Coptidis Rhizome is added to 900mL of water, placed in a decocting pot, and after boiling with high heat, Simmer for 20 minutes, filter through 200-mesh gauze to obtain the filtrate and medicinal residues, add the medicinal residues to 700mL of water, boil with...
Embodiment 1
[0131] Example 1 The HPLC characteristic spectrum of Coptidis rhizome
[0132] A kind of HPLC feature spectrum of Rhizoma Coptidis, HPLC feature spectrum comprises 8 characteristic peaks, with No. 8 peak berberine peak as contrast peak, the relative retention time of each characteristic peak is:
[0133] Peak No. 1: The relative retention time is 0.095;
[0134] Peak No. 2: The relative retention time is 0.359;
[0135] Peak No. 3: The relative retention time is 0.526;
[0136] Peak No. 4: The relative retention time is 0.551;
[0137] Peak No. 5: The relative retention time is 0.581;
[0138] Peak No. 6: The relative retention time is 0.653;
[0139] Peak No. 7: The relative retention time is 0.888;
[0140] Peak No. 8: The relative retention time is 1.000.
[0141] Taking No. 8 peak berberine peak as the reference peak, the relative peak area of each characteristic peak is:
[0142] Peak No. 1: The relative peak area is 0.0097;
[0143] Peak No. 2: The relative pea...
Embodiment 2
[0151] Example 2 Construction of the HPLC characteristic map of Coptis Rhizoma
[0152] (1) Gather Coptis chinensis
[0153] Collect 30 batches of qualified Coptis chinensis medicinal materials from the main authentic places of Coptis chinensis such as Hubei, Sichuan, Chongqing, etc., and process each batch of medicinal materials into 23 batches of qualified Coptis chinensis pieces. Unqualified medicinal materials were directly eliminated, and the collection information of medicinal materials is shown in Table 1.
[0154] Table 1 Origin information of different batches of Coptidis Rhizoma
[0155]
[0156]
[0157] (2) preparation of need testing solution
[0158] Weigh 100g of each batch of Coptidis Rhizoma decoction pieces, put them in a decoction pot, add 900mL of pure water, boil with strong fire, then decoct with slow fire for 20min, filter the extract with 200 mesh gauze, add 700mL of pure water to the dregs, and boil with strong fire After boiling, simmer for 1...
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