Method for establishing radix-scrophulariae pharmaceutical-preparation fingerprint chromatography
A technology for pharmaceutical preparations and fingerprints, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of detection and control quality, difficult production practice, inability to detect indicators, etc., to improve safety, stability, and high precision. , the effect of high stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0053] In the following examples and experimental examples, the preparation method of Scrophulariaceae formula granules is as follows: take Scrophulariaceae, heat and reflux extraction twice, add 8 times the amount of water for extraction for 2.0 hours for the first time, and add 6 times the amount of water for the second time Extract with water for 1.5 hours, filter, combine the filtrates, concentrate the filtrates to a relative density of 1.10-1.15 at 60°C, add conventional excipients, and make granules according to conventional processes.
Embodiment 2
[0055] The present embodiment establishes the method for the fingerprint of Scrophulariaceae formula granule, comprises the following steps:
[0056] (1) Take 0.5g of the medicinal preparation of Scrophulariaceae to be tested, accurately weigh it, accurately add 50mL of 50% methanol aqueous solution, weigh it, ultrasonically extract it for 30 minutes, let it cool, and weigh it again, take 50% methanol water solution to make up the weight Lost weight, shake up, filter, get the continued filtrate, as the test solution;
[0057] (2) Accurately weigh the reference substance of harpaside, add 50% methanol aqueous solution to make a solution containing 0.00006g per 1mL, shake well, and use it as the reference substance A solution;
[0058] Accurately weigh harpagoside reference substance, add 50% methanol aqueous solution to make a solution containing 0.00002g per 1mL, shake well, and use it as reference substance B solution;
[0059] Precisely weigh the cinnamic acid reference sub...
Embodiment 3
[0064] The present embodiment establishes the method for the fingerprint of Scrophulariaceae formula granule, comprises the following steps:
[0065] (1) Take 0.4g of the medicinal preparation of Scrophulariaceae to be tested, accurately weigh it, add 60mL of 40% methanol aqueous solution precisely, weigh it, extract it ultrasonically for 20 minutes, let it cool, weigh it again, take 40% methanol water solution to make up the Lost weight, shake up, filter, get the continued filtrate, as the test solution;
[0066] (2) Accurately weigh the reference substance of harpaside, add 40% methanol aqueous solution to make a solution containing 0.00004g per 1mL, shake well, and use it as the reference substance A solution;
[0067] Accurately weigh the reference substance of harpagoside, add 40% methanol aqueous solution to make a solution containing 0.00001g per 1mL, shake well, and use it as the reference substance B solution;
[0068] Accurately weigh the cinnamic acid reference sub...
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