Quality control method for pharmaceutic preparation containing sanguis draconis extract
A technology for pharmaceutical preparations and extracts, which is applied in the field of quality control of pharmaceutical preparations, can solve the problems of insufficient accuracy of thin-layer identification and spectrophotometry, and few detection items.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0287] Embodiment 1: the content determination method of total phenol:
[0288] a. Preparation of the reference substance solution: take an appropriate amount of 7,4′-dihydroxyflavone, accurately weigh it, put it in a brown measuring bottle, add absolute ethanol to make a solution containing 28 μg per 1 ml, and obtain it;
[0289] b. Preparation of standard curve: Accurately measure reference substance solution 0, 1.0, 2.0, 3.0, 4.0, 5.0ml, put them in 25ml measuring bottles respectively, add absolute ethanol to 5ml, add 0.3% dodecylsulfonic acid Sodium solution 2ml, 0.6% potassium ferricyanide solution 1ml, 0.9% ferric chloride solution 1ml, shake well, put it in a dark place for 5min, add 0.1M hydrochloric acid to the mark, shake well, put it away from light Place it for 35 minutes, and take the first copy as a blank; according to the UV-visible spectrophotometry method of Appendix VB of the Chinese Pharmacopoeia in 2005, measure the absorbance at 760nm, take the absorbance ...
Embodiment 2
[0292] Embodiment 2: the content determination method of total phenols:
[0293] a. Preparation of the reference substance solution: take an appropriate amount of 7,4′-dihydroxyflavone, accurately weigh it, put it in a brown measuring bottle, add absolute ethanol to make a solution containing 32 μg per 1 ml, and obtain it;
[0294] b. Preparation of standard curve: Accurately measure reference substance solution 0, 1.0, 2.0, 3.0, 4.0, 5.0ml, put them in 25ml measuring bottles respectively, add absolute ethanol to 5ml, add 0.3% dodecylsulfonic acid Sodium solution 2ml, 0.6% potassium ferricyanide solution 1ml, 0.9% ferric chloride solution 1ml, shake well, put it in a dark place for 5min, add 0.1M hydrochloric acid to the mark, shake well, put it away from light place at 780nm according to the ultraviolet-visible spectrophotometry method of appendix VB of the Chinese Pharmacopoeia in 2005, measure the absorbance at 780nm, take the absorbance as the ordinate, and the concentrati...
Embodiment 3
[0297] Embodiment 3: the content determination method of total phenol:
[0298] a. Preparation of the reference substance solution: take an appropriate amount of 7,4′-dihydroxyflavone, accurately weigh it, put it in a brown measuring bottle, add absolute ethanol to make a solution containing 36 μg per 1 ml, and obtain it;
[0299] b. Preparation of standard curve: Accurately measure reference substance solution 0, 1.0, 2.0, 3.0, 4.0, 5.0ml, put them in 25ml measuring bottles respectively, add absolute ethanol to 5ml, add 0.3% dodecylsulfonic acid Sodium solution 2ml, 0.6% potassium ferricyanide solution 1ml, 0.9% ferric chloride solution 1ml, shake well, put it in a dark place for 5min, add 0.1M hydrochloric acid to the mark, shake well, put it away from light Place it for 35 minutes, and take the first copy as a blank; according to the ultraviolet-visible spectrophotometry method of appendix VB of the Chinese Pharmacopoeia in 2005, measure the absorbance at 800nm, take the ab...
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