Method for simultaneously detecting contents of five components of traditional Chinese medicine for treating infantile enuresis
A technology of enuresis in children and traditional Chinese medicine, applied in the direction of measuring devices, material separation, and analysis of materials, can solve the problems of inability to objectively reflect and evaluate the quality consistency of traditional Chinese medicine, the inability to fully control the internal quality of products, large manpower and material resources, and testing equipment. Achieve the effect of improving accuracy and sensitivity, large peak area, and short peak time
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] The preparation of embodiment 1 need testing solution
[0033] Before the HPLC content determination, the drug to be tested needs to be extracted. The purpose of the extraction is to reduce the detected impurities in the preparation, including the extracted components in the traditional Chinese medicine that are not related to the detected components, as well as the excipients in the preparation, so as to reduce the impurities as much as possible. The interference of the peak shape of the characteristic peak of the measured object makes the characteristic peak have a better resolution; the second is to extract the component to be tested from the drug as much as possible, thereby increasing the peak area of the characteristic peak and ensuring the accuracy of the detection. According to the prescription and preparation characteristics of Xiaoer Yima Granules, combined with the solubility, polarity, and stability of the drug ingredients, we respectively investigated the ...
Embodiment 2
[0045] Embodiment 2 chromatographic column is selected
[0046] (1) The chromatographic column is InertSustain NH 2 (5μm, 250×4.6mm)
[0047] (2) The chromatographic column is Kromasil C18 (5μm, 250×4.6mm)
[0048] Detection wavelength: 210nm
[0049] Other conditions are identical with embodiment 1.
[0050] Result: by figure 2 , 5 It can be seen by comparison that Figure 5 Among them, ephedrine hydrochloride and cinnamic acid were obviously not completely separated from the adjacent peaks, and there were more impurities around the cinnamic aldehyde peak. Therefore, the amino chromatographic column is selected as the stationary phase, and the obtained liquid chromatogram has a stable baseline, a more symmetrical peak shape, and a better peak separation.
Embodiment 3
[0051] The selection of embodiment 3 mobile phases
[0052] (1) A is acetonitrile-B containing 0.1% (volume) THF is 0.1% (volume) triethylamine solution
[0053] (2) A is acetonitrile-B is 0.1% triethylamine solution
[0054] (3) A is acetonitrile-B containing 0.1% tetrahydrofuran for water
[0055] (4) A is acetonitrile-B is water
[0056] Detection wavelength: 210nm
[0057] Other conditions are identical with embodiment 1.
[0058] Result: by figure 2 , 6 , 7, 8 can be seen, Figure 6 and Figure 7 No ephedrine hydrochloride chromatographic peak, and Figure 7 Mobile phase baseline drift; Figure 8 The mobile phase baseline drifts, and there are few components detected in the chromatographic peaks, so the acetonitrile-0.1% triethylamine solution system with 0.1% tetrahydrofuran as the mobile phase is selected. Larger area and better peak resolution.
PUM
Property | Measurement | Unit |
---|---|---|
wavelength | aaaaa | aaaaa |
wavelength | aaaaa | aaaaa |
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