Salvianolic acid extract fingerprint spectrum and content measurement method of related components
A salvianolic acid and fingerprint technology, which is applied in the detection field of traditional Chinese medicine extracts, can solve the problems of poor specificity and accuracy, lack of integrity, insufficient identification of complex components, etc.
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Embodiment 1
[0150] Step 1: Establish a digital quantitative fingerprint of salvianolic acid extract by ultra-high performance liquid phase multi-wavelength visible ultraviolet detection method;
[0151] (1) Instruments and reagents: Waters UPLCsystem, XevoG2qTOF mass spectrometer in series. Salvianolic acid extract was provided by Tasly Zhijiao Pharmaceutical Co., Ltd. Acetonitrile and methanol were chromatographically pure (Merck), formic acid was chromatographically pure (sigma), and ultrapure water. The reference substances Danshensu Sodium, Protocatechualdehyde, Salvianolic Acid B, and Rosmarinic Acid were all purchased from China National Institutes for Food and Drug Control, Shikoninic Acid (Tianjin Mark Biotechnology), Salvianolic Acid D (Tianjin Yifang Technology Co., Ltd.) , Salvianolic acid A (Nantong Feiyu), salvianolic acid-LM (manufactured by Tasly).
[0152] (2) Preparation of reference substance solution:
[0153] Weigh about 5 mg of the reference substance of salvianoli...
Embodiment 2
[0193] Step 1: Establish a digital quantitative fingerprint of salvianolic acid extract by ultra-high performance liquid phase multi-wavelength visible ultraviolet detection method;
[0194] (1) Preparation of reference substance solution:
[0195] Weigh about 2.5 mg of the reference substance of salvianolic acid B; about 1.5 mg of each of the reference substances of rosmarinic acid and shikonin; About 1mg of each LM reference substance was placed in a 5mL volumetric flask, made up to volume with ultrapure water, shaken well, passed through a microporous membrane (0.22μm), and the filtrate was obtained.
[0196] (2) Preparation of the test solution: 10 batches of salvianolic acid extracts were accurately weighed respectively, the samples were dissolved in ultrapure water, fixedly dissolved in a 10ml volumetric flask, passed through a 0.22 μm filter membrane after dissolving, and diluted to a concentration of 5mg / mL solution;
[0197] (3) Determination of fingerprints: Accura...
Embodiment 3
[0227] Step 1: Establish a digital quantitative fingerprint of salvianolic acid extract by ultra-high performance liquid phase multi-wavelength visible ultraviolet detection method;
[0228] (1) Preparation of reference substance solution:
[0229] Weigh about 7.5 mg of the reference substance of salvianolic acid B; about 2 mg of the reference substance of rosmarinic acid and shikoninic acid; About 2.5mg each of the reference substances was placed in a 5mL volumetric flask, made up to volume with ultrapure water, shaken well, passed through a microporous membrane (0.22μm), and the filtrate was obtained.
[0230] (2) Preparation of the test solution: 50 batches of salvianolic acid extracts were accurately weighed respectively, the samples were dissolved in ultrapure water, fixedly dissolved in a 10ml volumetric flask, passed through a 0.22 μm filter membrane after dissolving, and diluted to a concentration of 3mg / mL solution;
[0231] (3) Determination of fingerprint spectrum...
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