A method for determining the fingerprint of Hirudo phenantha medicinal material
A technology of fingerprints and determination methods, which is applied in the field of determination of fingerprints of the medicinal material Hirudo phenatus
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[0049] The preparation method of the test solution: crush the dry product of Hirudo phenanthae, pass through a 40-mesh sieve, take 0.40g, add 5ml of deionized water for ultrasonication for 15min, centrifuge at 4500r min-1 for 15min, filter with a 0.45μm filter membrane, and the filtrate is used as a high-efficiency Liquid chromatography need testing solution standby;
[0050] Chromatographic conditions: The chromatographic column is a C18 column, the specification is 250mm×4.6mm, 5μm; the mobile phase: the A phase is acetonitrile, the B phase is water, gradient elution; the elution program is 0→5min, A is 0%, 5→ 23min, A is 0%→4%, 23→24min, A is 4%→5%, 24-66min, A is 5%→21.4%; flow rate: 1ml min -1 ; Column temperature: 20°C; detection wavelength is 254nm.
[0051] Take the test solution, inject samples according to the above-mentioned chromatographic conditions, record the chromatogram, and compare it with the standard chromatogram, and it is completely fitted.
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