Method for detecting and controlling fingerprint spectrum of Xiebai powder reference sample
A standard fingerprint, benchmark sample technology, applied in the field of quality control and detection of traditional Chinese medicine preparation and its components, can solve separation difficulties, limited content of the active ingredients of Chenyao Digupi, and the degree of separation of Digupitin is not up to standard, etc. question
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0115] In parts by weight, accurately weigh 3.93g of fried mulberry bark, 3.93g of Digupi, 0.39g of roasted licorice, and 1g of japonica rice. After mixing, add two small cups of water to make 120mL. After boiling for 10 minutes, heat and decoct at 110°C for 10 minutes on a slow fire to form "fried seven minutes", to 84mL, and filter and extract with 100-mesh nylon cloth to obtain a water extract.
[0116] Precisely measure 5mL of the water extract, put it into a 10mL brown ampoule, freeze at -80°C for 12h in a lyophilizer, and dry at 25°C for 48h to obtain Xiebaisan sample 1#.
Embodiment 2
[0118] In parts by weight, accurately weigh 3.90g of fried mulberry bark, 3.90g of Digupi, 0.39g of roasted licorice, and 1g of japonica rice. After mixing, add two small cups of water to make 120mL. After boiling for 15 minutes, heat and decoct at 100°C for 15 minutes on a slow fire to form "fried seven minutes", to 84mL, filter and extract with 100-mesh nylon cloth to obtain a water extract.
[0119] Precisely measure 5mL of the water extract, put it into a 10mL brown ampoule, freeze at -60°C for 13h in a lyophilizer, and dry at 20°C for 50h to obtain Xiebaisan sample 2#.
Embodiment 3
[0121] 1. Solution preparation
[0122] Get the 5mL Xiebai San water extract prepared in Example 1 and freeze-dry the Xiebai San sample 1#, add 5mL water to redissolve, accurately pipette 1mL into a 2mL volumetric flask, dilute to the mark with methanol, and use 10000rpm Speed centrifugation 5min, through 0.22μm microporous membrane, that is, the test solution 1#.
[0123] A reference substance solution is provided, and the reference substance solution includes disanbaritin A, chlorogenic acid, dicortexin, dicortexin, liquiritin, liquiritin, ammonium glycyrrhizinate reference substance and methanol.
[0124] 2. Chromatographic conditions
[0125] The chromatographic conditions of high performance liquid chromatography are: chromatographic column: Agilent Zorbax SB-Aq chromatographic column (250mm * 4.6mm, 5 μ m); Detector is photodiode array detector (DAD); Column temperature: 25 ℃; Detection wavelength: 273nm; Flow rate: 1.0mL / min; Injection volume: 20μL; Mobile phase: 0....
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