Lanqin oral solution fingerprint spectrum establishment method, fingerprint spectrum of Lanqin oral solution and application of fingerprint spectrum
A technology of Lanqin oral liquid and fingerprints, which is applied in the field of drug analysis, can solve the problems of not being able to reflect the overall curative effect of traditional Chinese medicine as a whole, and achieve the effect of ensuring safety and effectiveness
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Embodiment 1
[0088] Example 1 The establishment method and methodological investigation of the fingerprint of Lanqin Oral Liquid
[0089] 1. Method for establishing the fingerprint of Lanqin Oral Liquid
[0090] The method for establishing the fingerprint of Lanqin Oral Liquid comprises the following steps:
[0091] (1) Preparation of the test solution: take 19 different batches of Lanqin oral liquid in the above table 1, accurately draw 200 μl into a 10mL centrifuge tube, add 4.8mL of methanol to dilute, mix well and pass through a 0.45 μm micro Pore filter membrane, as need testing solution;
[0092] (2) Preparation of reference substance solution: Take an appropriate amount of baicalin reference substance, weigh it accurately, add 70% methanol to dissolve, and prepare the content to be 208 μg·mL -1 The reference substance solution, respectively take adenosine reference substance, Yichun reference substance, cortex base hydrochloride reference substance, chlorogenic acid reference su...
Embodiment 2
[0138] Example 2 Detection and Methodological Investigation of the Multi-wavelength Quantitative Components of the Lanqin Oral Liquid Fingerprint
[0139] 1. Detection of multi-wavelength quantitative components
[0140] Adenosine, Yichun, phellodine hydrochloride, chlorogenic acid, magnolialine, geniposide, benzoic acid, berberine hydrochloride, wogonin, baicalein, wogonin 12 kinds of drug efficacy index ingredients, retained The times are: 2.58, 12.56, 15.18, 16.68, 17.23, 21.53, 40.13, 41.45, 47.43, 55.69, 60.88, 64.01min. Turn on the DAD detector for full-wavelength scanning, compare the peak areas of each drug efficacy index component under different wavelength conditions, and obtain the optimal detection wavelength of each index component. Acid, magnolialine, geniposide, benzoic acid and berberine hydrochloride have greater absorption at 230nm; baicalin, wogonoside, baicalein, wogonin have greater absorption at 276nm. Finally, select and record the retention time and p...
Embodiment 3
[0215] Example 3 Establishment of Fingerprints of Lanqin Oral Liquid Key Process Intermediates
[0216] 1. Fingerprint of Concentration Process Intermediate I
[0217] Take an appropriate amount of 9 different batches of Lanqin concentrated process intermediate I in the above table 2, add 60% methanol aqueous solution to dilute, mix well, and pass through a 0.45 μm microporous membrane as the test solution. Sample injection by chromatographic conditions in Example 1, obtain the liquid chromatography of need testing solution. Import the liquid chromatogram into the "Chromatographic Fingerprint Similarity Evaluation System 2004A Edition" compiled by the National Pharmacopoeia Committee to process the chromatogram data. Obtain the overlay chromatogram of concentrated process intermediate I (see Figure 20 ) and the control map (see Figure 21 ), the fingerprints of 9 batches of Lanqin concentrated process intermediate I were analyzed for similarity with the generated control f...
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