HPLC fingerprint determination method of cough relieving Bulbus fritillariae cirrhosae and loquat dripping pills
A technique for treating cough, Chuanbei loquat, and a determination method, which is applied in the field of medicine and achieves the effects of being easy to grasp, having good stability and reducing the possibility of human processing.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] Embodiment 1: The method for determining the HPLC fingerprint of Chuanbei Piqua Dropping Pills
[0032] 1.1 Instruments and reagents
[0033] Instrument: Waters ACQUITY TM UPLC ultra-high performance liquid chromatography, Masslynx TM 4.0 workstation;
[0034] Chromatographic column: ACQUITY UPLC HSS T3, 1.8um, 2.1×100mm, Waters
[0035] Reagents: Methanol, acetonitrile, and formic acid are chromatographically pure (Fisher), water is ultrapure water, and other reagents are analytically pure.
[0036] 1.2 Preparation of reference solution
[0037] Chlorogenic acid (self-made, structure confirmed by MS, UV, FIR, and NMR) has a retention time of 7.99 minutes, which has a strong response under this condition, and can basically achieve baseline separation from the impurities before and after. Therefore, it is designated as the reference substance. Take an appropriate amount of chlorogenic acid, weigh it accurately, add methanol to prepare a solution containing 0.1 mg of ...
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