Traditional Chinese medicine preparation detection method
A detection method and a technology of traditional Chinese medicine preparations, which are applied in the preparation of test samples and the measurement of color/spectral characteristics, etc., and can solve the problems of no content determination items, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0051] Yilingjing batch number: 20090821
[0052] 1 TLC identification
[0053] 1.1 Identification of Radix Polygoni Multiflori Radix by TLC method: take 40ml of Yilingjing, put it in a separatory funnel, add dichloromethane to shake and extract 3 times, add 40ml of dichloromethane once at a time, separate the dichloromethane liquid, put it on a water bath and evaporate to dryness , the residue was dissolved by adding 1ml of methanol, and used as the test solution; another 40ml of the negative sample of Radix Polygoni Multiflori Lack was taken, and the negative control solution was prepared in the same way; then 0.2g of Polygonum multiflorum control drug was taken, 20ml of dichloromethane was added, and ultrasound was performed for 30min. Filtrate, evaporate the filtrate to dryness, add 1ml of methanol to the residue to dissolve, and use it as a reference medicinal material solution; according to the TLC test of the Chinese Pharmacopoeia 2015 Edition Four General Rules 0502, a...
Embodiment 2
[0063] Yilingjing lot number: 20090901
[0064] Determination of stilbene glycosides in Radix Polygoni Multiflori
[0065] Chromatographic conditions: chromatographic column is Phenomenex C18 column (250mm×4.6mm, 5μm); detection wavelength is 310nm; mobile phase A is acetonitrile, mobile phase B is water, analysis time is 30 minutes, isocratic elution, mobile phase A: mobile phase The volume ratio of B is 20:80; the flow rate is 0.8mL min -1 ;The column temperature is 40°C; the injection volume is 10μl; the number of theoretical plates is not less than 2000;
[0066] Preparation of reference substance solution: Accurately weigh 13 mg of stilbene glycoside (2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside) reference substance, put it in a 50ml volumetric flask, Add dilute ethanol to dissolve and set the volume to the mark, shake well to obtain the reference substance solution mother liquor. Precisely measure 1mL of the mother solution of the reference substance solution and p...
Embodiment 3
[0070] Yilingjing batch number: 20090903
[0071] Determination of stilbene glycosides in Radix Polygoni Multiflori
[0072] Chromatographic conditions: chromatographic column is Phenomenex C18 column (250mm×4.6mm, 5μm); detection wavelength is 330nm; mobile phase A is acetonitrile, mobile phase B is water, analysis time is 30 minutes, isocratic elution, mobile phase A: mobile phase The volume ratio of B is 20:80; the flow rate is 1.2mL min -1 ;The column temperature is 25°C; the injection volume is 10μl; the number of theoretical plates is not less than 2000;
[0073] Preparation of reference substance solution: Accurately weigh 13 mg of stilbene glycoside (2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside) reference substance, put it in a 50ml volumetric flask, Add dilute ethanol to dissolve and set the volume to the mark, shake well to obtain the reference substance solution mother liquor. Precisely measure 1mL of the mother solution of the reference substance solution and...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com