HPLC fingerprint detection method for anisodus tanguticus roots
A technique of scopolamine root and fingerprint, which is applied in the directions of measuring devices, instruments, scientific instruments, etc.
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Embodiment 1
[0029] Embodiment 1 Detection method of the present invention
[0030] The preparation of need testing solution: get about 0.5g of medicinal material powder to be checked (through the No. 3 sieve), accurately weighed, put in a stoppered Erlenmeyer flask, add 10mL of methanol, seal it tightly, weigh, ultrasonic (power 300W, frequency (50kHz) for 30min, let cool, weigh again, make up for the lost weight with methanol, shake well, filter, and take the filtrate to obtain the final product.
[0031] The test solution is injected into the liquid chromatograph, and after detection, the fingerprints of the obtained test product are compared with the control fingerprints. If the similarity is above 0.850, it is anisodamine root.
[0032] The chromatographic conditions are as follows:
[0033] The column is Ultimate AQ C 18 (5μm, 4.6×250mm), the mobile phase is A (acetonitrile) - B (10mmol / L KH 2 PO 4 buffer, with H 3 PO 4 Adjust the pH to 3.0), the concentration of mobile phase A...
Embodiment 2
[0035] Embodiment 2 methodological investigation
[0036] 1 material
[0037] The sources of Anisodora root samples used in the experiment are shown in Table 1. According to the identification of Professor Ma Yuying from the School of Pharmacy, Chengdu University of Traditional Chinese Medicine, they are all roots of Anisodus tanguticus (Maxim.) Pascher, a plant in the family Solanaceae.
[0038] Table 1 Information of 18 batches of anisopolamine root samples
[0039]
[0040] 2 Methods and Results
[0041] 2.1 Chromatographic conditions
[0042] The column is Ultimate AQ C 18 (5μm, 4.6×250mm), the mobile phase is A (acetonitrile) - B (10mmol / L KH 2 PO 4 buffer, with H 3 PO 4 Adjust the pH to 3.0), the concentration of mobile phase A changes as follows: 0-5min, 10%; 5-40min, 10%-25%; 40-41min, 25%-90%; 41-50min, 90%-90% ; 50-55min, 90%-10%; 55-60min, 10%-10%. Flow rate 1.0mL / min; column temperature 30°C; detection wavelength 210nm; injection volume 10μL.
[0043] ...
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