Method for establishing fingerprint spectrum of bactericidal itching-relieving lotion
A technology of sterilization and antipruritic, fingerprint map, applied in the field of establishment of fingerprint map of sterilization and antipruritic lotion, can solve the problems of complex composition of sterilization and itching lotion, incomplete quality control indicators, etc., achieve comprehensive monitoring of product quality, avoid single Sexual and one-sided, high-tech effects
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Embodiment 1
[0067] A method for establishing the fingerprint of a bactericidal and antipruritic lotion, comprising the following steps:
[0068] S1. Preparation of mixed reference solution:
[0069] Take matrine, astilbin, phellodendron, berberine hydrochloride, osthole, and atractylodes reference substances in appropriate amounts, accurately weigh them, and add methanol to make the concentrations 248.3, 190.7, 154.1, 198.5, 251.4, and 183.6, respectively. μg / mL mixed reference solution.
[0070] S2. Preparation of bactericidal antipruritic lotion sample solution:
[0071] Accurately weigh the bactericidal antipruritic lotion, add anhydrous methanol, ultrasonically extract for 30 minutes, let cool, filter under reduced pressure, take the supernatant and centrifuge at 13000r / min for 10 minutes to obtain the test solution.
[0072] S4. Preparation of single-flavor contrast medicinal material solution:
[0073] Crush Phellodendron Phellodendron, Sophora Sophora, Cnidium Fructus, Smilax Sm...
experiment example
[0086] 1. Inspection of extraction conditions
[0087] 1.1 Investigation of wavelength
[0088] Under the same conditions, compare the chromatograms at different wavelengths, the results are shown in figure 1 .
[0089] Among them, 1: 220nm; 2: 240nm; 3: 260nm; 4: 285nm; 5: 290nm; 6: 300nm; 7: 320nm; 8: 340nm.
[0090] The results showed that considering the number of chromatographic peaks, peak intensity, baseline stability and separation effect, 285nm was determined as the final detection wavelength.
[0091] 1.2 Inspection of chromatographic column
[0092] Taking the same sample solution of antibacterial and antipruritic lotion, under the same chromatographic conditions, the separation effects of the following five different C18 chromatographic columns were investigated, including: Waters XBridge C18 (4.6×250mm, 5μm); Comatex C18-AA (250mm ×4.6mm, 5μm); ZORBAX Eclipse Plus C18 (4.6×250mm, 5μm); Zorbax SB-C18 (4.6×250mm, 5μm); Phenomenex luna C18 (4.6×250mm, 5μm); fig...
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