Processed rhubarb or/and raw rhubarb detection method
A detection method, the technology of raw rhubarb, applied in the detection field of processed rhubarb or/and raw rhubarb, can solve the problems of unfavorable detection cost, environmental protection, high price of acetonitrile, large amount of acetonitrile, etc., to achieve good separation and save Detection cost, effect of reducing operation steps
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0076] Example 1 The processing method of rhubarb of the present invention
[0077] Take raw rhubarb, add 30ml yellow wine and 70ml water for every 100g, mix well, moisten for 4h, the yellow wine is absorbed by the medicinal materials. Steam it in a pressure cooker at 120°C for 3 hours, take it out, dry at 60°C, and repeat the operation twice to obtain a processed rhubarb product.
[0078] The steaming in the present invention refers to the steaming method described in Appendix IID of the 2005 edition of the Chinese Pharmacopoeia.
[0079] The raw rhubarb in the present invention is the dried roots and rhizomes of Rheum officinale Baill., Rheum palmatum L. or Rheum tanguticum Maxim.ex Balf.
[0080] The rice wine of the present invention is obtained by purchasing commercially available products, such as Sichuan Yilong Yinming Rice Wine Co., Ltd., implementation standard: GB / T 13662).
Example Embodiment
[0081] Example 2 Processing method of rhubarb of the present invention
[0082] Take raw rhubarb, add 30ml yellow wine and 70ml water per 100g, mix well, moisten for 4h, without leaving any remaining water, press it in a pressure cooker at 120℃ for 6h, take it out, and dry at 60℃ to get it.
Example Embodiment
[0083] Example 3 The quality detection method of the nine-made rhubarb of the present invention
[0084] (1) Preparation of sample solution:
[0085] Precisely weigh about 0.5g of nine-made rhubarb sample powder (passing through No. 4 sieve), add 25ml of methanol, weigh, soak for 12h, ultrasound for 30min, cool the extract to room temperature, make up the weight, filter, and take the subsequent filtrate as the test product Solution
[0086] (2) Preparation of reference solution:
[0087] Use methanol to dissolve chrysophanol, microfiltration, the filtrate as a reference solution, each 1ml contains chrysophanol 16μg;
[0088] (3) Chromatographic conditions:
[0089] Column: Kromasil C 18 (250×4.6mm, 5μm); mobile phase: A: methanol, B: 0.1% phosphoric acid, gradient elution program: from 0 to 5 min, phase A from 5% to 20%, phase B from 95% to 80% ; 5~15min, phase A from 20%~35%, phase B from 80%~65%; 15~23min, phase A from 35%~40%, phase B from 65%~60%; 23~28min, A Phase changes from 40...
PUM
Property | Measurement | Unit |
---|---|---|
Wavelength | aaaaa | aaaaa |
Thickness | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap